Are you searching for a show-stopping breakfast or brunch recipe that requires minimal effort but delivers maximum flavor? Look no further than this incredible Easy Cinnamon Roll French Toast Bake. It combines the gooey, buttery perfection of canned cinnamon rolls with the silky, rich texture of classic French toast custard, transforming simple ingredients into a decadent, crowd-pleasing casserole.
This recipe is the definition of convenience. Forget rolling dough, proofing yeast, or standing over a griddle flipping slice after slice. With this brilliant shortcut, you simply cut, soak, and bake! Perfect for holiday mornings, feeding a large family, or just ensuring you have a deliciously sweet treat ready for a lazy weekend. The aroma alone a blend of warm cinnamon, vanilla, and sweet baking dough will pull everyone out of bed. Get ready to impress your guests and your taste buds with this unforgettable Easy Cinnamon Roll French Toast Bake!
Why You’ll Absolutely Love This Easy Cinnamon Roll French Toast Bake
The culinary magic of the Easy Cinnamon Roll French Toast Bake lies in its simplicity and versatility. This dish takes two beloved breakfast classics the cinnamon roll and French toast and fuses them into one spectacular, oven-baked creation. If you are a fan of quick breakfast bakes, casseroles, or anything involving sweet, sticky cinnamon, this recipe will quickly become a permanent fixture in your rotation.
Unbeatable Convenience and Time Savings
Traditional cinnamon rolls are a labor of love, often requiring hours of kneading and rising. Classic French toast, while quicker, means continuous cooking on a stovetop, which is impractical when serving a crowd. This recipe eliminates both headaches. By utilizing refrigerated cinnamon rolls, we slash the prep time down to just 15 minutes. The refrigerated cinnamon rolls act as both the base and the cinnamon-sugar delivery system, meaning you don’t need to add extra cinnamon sugar it’s already built right in!
- Perfect for Holidays: Thanksgiving, Christmas, and Easter mornings are hectic. This French toast casserole can be prepped the night before (see tips below!) and popped straight into the oven, allowing you to focus on family and gifts, not frying pans.
- Feeds a Crowd: Baked in a large 9×13 inch dish, this recipe easily yields 8 to 10 substantial servings, making it ideal for potlucks, brunch parties, or large family gatherings.
- Minimal Cleanup: Everything happens in one baking dish and one mixing bowl. Forget stacks of dirty plates and greasy skillets.
Flavor Profile: Sweet, Gooey, and Custardy
When the cut cinnamon roll pieces are drenched in the rich custard, they absorb the liquid beautifully. As the bake cooks, the egg-milk mixture sets into a creamy, almost bread pudding-like consistency, while the cinnamon roll pieces become soft and incredibly tender. The centers remain moist and gooey, while the tops achieve a beautiful golden crust.
The real highlight, of course, is the icing. Heating up the reserved icing packets and drizzling them generously over the hot bake creates a sweet, melt-in-your-mouth glaze that seals the deal. This dish isn’t just breakfast; it’s dessert masquerading as breakfast, and it tastes absolutely divine. You get the crispy edges, the chewy interior, and that unmistakable swirl of sweet cinnamon in every bite of this Easy Cinnamon Roll French Toast Bake.
We often find ourselves making similar comforting baked goods, especially around the holidays. If you enjoy the warm flavors of this bake, you might also enjoy making Glazed Eggnog Banana Bread, which brings that same level of warm, sweet indulgence to a loaf format. But for a casserole that truly screams “weekend brunch,” this recipe is the uncontested champion.
The Perfect Brunch Solution: Why You Should Try This Quick Cinnamon Roll Bake
Why choose this specific approach for your next breakfast gathering? Because this quick cinnamon roll bake offers a level of indulgence and simplicity that traditional recipes simply cannot match. It’s a game-changer for anyone who loves the idea of home-baked goods but doesn’t have the time or energy for intensive baking projects. It truly captures the essence of comfort food without the complexity.
Achieving the Ideal Texture
One of the most common issues with traditional French toast casseroles (made from sliced bread) is that the bread can become soggy or dry out. By using dense, pre-rolled cinnamon roll dough, we bypass this problem entirely. The layered structure of the rolls helps them absorb the custard deeply without dissolving. This results in a superior, more consistent texture:
- Inner Gooiness: The innermost spirals of the rolls soak up the custard and stay soft and moist.
- Chewy Outer Layer: The outside of the quarters caramelizes slightly as it bakes against the hot pan, creating satisfying chewy edges.
- Custard Richness: The combination of whole milk and heavy cream (or extra milk) ensures the custard is creamy and rich, not thin or overly eggy. This richness is key to a truly decadent Easy Cinnamon Roll French Toast Bake.
A Versatile Base for Customization
While delicious on its own, the simplicity of using refrigerated cinnamon rolls provides a perfect blank canvas for additional flavors. You can easily elevate this dish based on the season or your personal cravings. This adaptability ensures that the cinnamon roll French toast casserole never gets boring. If you’re experimenting with different sweet bakes, you might also find inspiration in recipes like our Pumpkin Cream Cheese Cinnamon Rolls, which shows just how well cinnamon and cream cheese pair in baked treats.
Budget-Friendly and Accessible Ingredients
Another compelling reason to try this recipe is that all the components are inexpensive and readily available at any standard grocery store. No specialty flours or exotic extracts are needed. This is truly an affordable way to create a spectacular meal.
In short, if you need a guaranteed hit that smells amazing, tastes better, requires only basic kitchen skills, and saves you significant time in the kitchen, this Easy Cinnamon Roll French Toast Bake is your answer. It transitions effortlessly from a quick weekend breakfast to a centerpiece holiday brunch item.
Essential Ingredients and Tools for the Best Easy Cinnamon Roll French Toast Bake
Success in making the perfect Easy Cinnamon Roll French Toast Bake starts with understanding the role of each ingredient and having the right equipment ready. Because we are using pre-made dough, ingredient quality (especially the dairy) makes a big difference in the richness of the final product.
Ingredients Breakdown with Precise Quantities
Below is the detailed list of ingredients. Pay close attention to the dairy measurements, as the fat content contributes significantly to the custardy texture.
For the French Toast Bake:
- 2 (12.4 oz) cans refrigerated cinnamon rolls (with icing packets included): This is the foundation of our dish. The size is standard for brands like Pillsbury. Crucial Tip: Do not discard the icing packets! Set them aside they are essential for the glaze.
- 6 large eggs: The protein source that forms the custard. Large eggs provide the perfect ratio of liquid to solid to bind the cut dough pieces together.
- 1/2 cup whole milk: Whole milk provides a better body and creaminess than skim or 2% milk, preventing a watery custard.
- 1/4 cup heavy cream (or additional milk): Adding heavy cream elevates the richness, giving the bake a truly decadent, bread-pudding texture. If you don’t have heavy cream, you can use an extra 1/4 cup of whole milk, but the result will be slightly less luxurious.
- 1 teaspoon pure vanilla extract: A non-negotiable flavor booster. Vanilla brightens the overall profile and complements the cinnamon beautifully.
- 1/2 teaspoon ground cinnamon: While the rolls already contain cinnamon, adding a little extra to the custard boosts the flavor intensity and ensures every layer, including the liquid base, tastes perfectly spiced.
- 1 tablespoon unsalted butter: Used for greasing the baking pan. Alternatively, use cooking spray, but butter provides a better non-stick surface and a lovely subtle flavor to the edges.
The Importance of Quality Dairy
When preparing your custard for this Easy Cinnamon Roll French Toast Bake, the quality and fat content of the dairy matter immensely. The fat in the whole milk and heavy cream carries the flavor of the vanilla and cinnamon and helps create a smoother, richer final texture. If you use low-fat milk, your custard is more likely to separate or absorb unevenly, resulting in a less satisfying, potentially rubbery consistency.
For those interested in exploring different kinds of sweet bakes that utilize rich dairy components, check out our recipe for Sourdough Cinnamon Buns, where enriched dough plays a similar role in texture.
Recommended Tools and Utensils for Recipe Success
This recipe is designed to be low-fuss, meaning you won’t need specialized equipment. However, having these basics ensures smooth preparation:
Utensils Checklist:
- 9×13 Inch Baking Dish (Essential): A standard rectangular casserole dish. Ensure it is deep enough to hold both the rolls and the custard without spilling.
- Large Mixing Bowl: Necessary for whisking the eggs, milk, and spices into a uniform custard.
- Whisk or Fork: To thoroughly blend the custard ingredients. Tip: Whisk aggressively for 30 seconds to ensure the egg yolks are fully incorporated, which prevents a speckled texture on the finished bake.
- Sharp Knife or Kitchen Scissors: Used to quarter the cinnamon rolls. Scissors are often easier and less messy for cutting sticky dough.
- Cutting Board: For preparing the cinnamon rolls.
- Measuring Cups and Spoons: For precise ingredient measuring, especially the dairy and spices.
- Wire Rack: Important for cooling the bake slightly before glazing, which helps the icing set perfectly without melting completely into the casserole.
By preparing these simple ingredients and having these basic tools handy, you are well on your way to creating a perfect batch of Easy Cinnamon Roll French Toast Bake.
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EASY CINNAMON ROLL FRENCH TOAST BAKE
The simplest way to achieve a rich, decadent brunch casserole using canned cinnamon rolls.
| Prep Time: | 15 Minutes |
| Cook Time: | 28 – 32 Minutes |
| Servings: | 8 – 10 Servings |
INGREDIENTS
For the French Toast Bake:
- 2 (12.4 oz) cans refrigerated cinnamon rolls (with icing packets included)
- 6 large eggs
- 1/2 cup whole milk
- 1/4 cup heavy cream (or additional milk)
- 1 teaspoon pure vanilla extract
- 1/2 teaspoon ground cinnamon
- 1 tablespoon unsalted butter (for greasing the pan)
INSTRUCTIONS
- Prepare the Oven and Pan: Preheat your oven to 375°F (190°C). Lightly grease a standard 9×13 inch baking dish with the tablespoon of butter or cooking spray. Open the canned cinnamon rolls. Set the included icing packets aside for later use.
- Cut and Arrange the Cinnamon Rolls: Place each cinnamon roll flat on a cutting board. Using a sharp knife or kitchen scissors, cut each roll into four equal pieces (quarter them). Scatter the cut cinnamon roll pieces evenly across the bottom of the prepared 9×13 inch baking dish. The pieces should fill the pan and touch each other, but do not compress them too tightly.
- Prepare the French Toast Custard: In a large bowl, whisk together the 6 large eggs, 1/2 cup whole milk, 1/4 cup heavy cream, 1 teaspoon vanilla extract, and 1/2 teaspoon ground cinnamon. Whisk until the mixture is completely uniform, slightly frothy, and no streaks of egg yolk remain.
- Soak and Bake: Carefully pour the liquid custard mixture evenly over the scattered cinnamon roll pieces in the baking dish. Ensure every piece is thoroughly covered and coated by the egg mixture. Allow the bake to sit undisturbed for 5 to 10 minutes to allow the cinnamon rolls to fully absorb the liquid. Place the baking dish into the preheated 375°F (190°C) oven. Bake for 28 to 32 minutes, or until the top is golden brown, the center is set, and a knife inserted near the center comes out clean.
- Glaze and Serve: Remove the French toast bake from the oven and place it on a wire rack. Take the reserved icing packets. If the icing is too thick, place the sealed packets in a bowl of warm water for a few minutes or microwave them (unsealed, in a separate bowl) for 5 to 10 seconds to loosen the consistency. Snip the corner of the icing packets and generously drizzle all the icing over the warm French toast bake. Serve immediately while warm.
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Step-by-Step Guide: How to Master the Easy Cinnamon Roll French Toast Bake
Making this Easy Cinnamon Roll French Toast Bake is simple, but following these detailed instructions and practical tips ensures a perfect, custardy result every time. We break down each phase from preparation to the final glorious glaze.
Phase 1: Setting the Stage (Preparation)
The initial steps are vital for ensuring even cooking and preventing sticking.
- Preheat Accurately and Grease Generously: Set your oven precisely to 375°F (190°C). While the oven heats, take your 9×13 inch baking dish and generously coat it with 1 tablespoon of softened unsalted butter. Ensure the butter reaches the corners and sides. A well-greased pan is essential for easy serving and cleanup, preventing the sticky, cinnamon-sugar bottoms from adhering to the glass.
- Handle the Rolls: Pop open the cans of cinnamon rolls. Immediately remove and set aside the two icing packets. If you forget to set them aside, you risk baking them, which ruins the glaze!
Phase 2: The Art of the Cut and Scatter
The way you prepare the cinnamon rolls determines how well they absorb the custard and how uniform the final casserole will be.
- Quartering the Rolls: Place each cinnamon roll on a cutting board. Using a sharp knife or clean kitchen scissors, cut each roll into four equal quarters. You should end up with approximately 20 pieces (if using 8-count rolls). Why quarter them? Cutting the dough exposes more surface area, allowing the rich custard to penetrate the layers deeply. This ensures the dough fully transforms into a soft French toast texture.
- Arrangement is Key: Scatter the cut pieces evenly across the bottom of the prepared baking dish. They should be relatively snug this is a casserole, after all but avoid packing or compressing them. You want pockets of space so the liquid custard can flow down and around all the pieces.
Phase 3: Crafting the Custard
This is where the ‘French Toast’ element comes in. A good custard is rich, well-seasoned, and fully emulsified.
- Whisk the Base: In your large mixing bowl, crack the 6 large eggs. Add the 1/2 cup whole milk, 1/4 cup heavy cream, 1 teaspoon vanilla extract, and 1/2 teaspoon ground cinnamon.
- Achieve Uniformity: Whisk vigorously. You must fully break up the egg structure and combine it seamlessly with the dairy. Look for a pale yellow, slightly frothy mixture with no visible streaks of egg yolk or clear egg white. A poorly mixed custard can result in unevenly cooked, rubbery spots in the bake.
For those who love to whip up sweet, custardy breakfast dishes, remember that preparation often takes longer than the actual mixing! If you enjoy starting your morning with comforting, baked sweetness, you might also be interested in our guide on making other delightful breakfast recipes on Pinterest.
Phase 4: Soaking, Setting, and Baking
The soak time is non-negotiable for achieving a fluffy, moist interior for your Easy Cinnamon Roll French Toast Bake.
- The Pour and the Crucial Soak: Gently pour the complete custard mixture evenly over the scattered cinnamon roll pieces. Tilt the dish slightly to ensure the liquid reaches all corners. Now, allow the dish to sit undisturbed for 5 to 10 minutes. This is critical. During this brief soak, the dense dough absorbs the liquid, ensuring the centers cook properly and remain moist.
- Bake Time: Place the baking dish into the preheated 375°F (190°C) oven. The standard bake time is 28 to 32 minutes.
- Testing for Doneness: The bake is ready when the top is beautifully golden brown, and the center looks set, not liquidy. To confirm, gently insert a thin knife or wooden skewer near the center. It should come out mostly clean. If it comes out covered in raw liquid egg, continue baking in 3-5 minute increments.
Phase 5: Glaze and Grand Finale
The final step brings the sweetness factor to its peak.
- Warm the Glaze: While the bake is still piping hot from the oven, prepare the reserved icing packets. If they are cold and stiff, place the sealed packets in a bowl of warm (not boiling) water for a few minutes, or snip the corner of the packets and microwave them briefly (5-10 seconds). This loosens the consistency, making them perfect for drizzling.
- Drizzle and Serve: Remove the bake to a wire rack. Snip a corner of each icing packet and drizzle the glaze liberally over the entire warm French toast bake. The warmth of the casserole will slightly melt the icing, allowing it to seep into the crevices. Serve immediately while warm, savoring every sweet, sticky bite of this amazing Easy Cinnamon Roll French Toast Bake.
Tips, Tricks, and Delicious Variations for Your French Toast Casserole
While the classic Easy Cinnamon Roll French Toast Bake is perfect as is, a few clever techniques and ingredient swaps can elevate this dish further, making it adaptable for various dietary needs or seasonal flavors.
Make-Ahead Magic: The Overnight French Toast Bake
The true power of this recipe is its ability to be prepped the night before. This makes it an ideal overnight French toast bake for busy mornings or holidays.
- Prep Night Before: Follow steps 1 through 7 (cutting the rolls, making the custard, and pouring it over the rolls).
- Refrigeration: Cover the baking dish tightly with plastic wrap and refrigerate overnight (up to 12 hours). The longer chill time allows for maximum flavor absorption.
- Baking Adjustment: When ready to bake, remove the dish from the refrigerator while the oven preheats. This allows the dish to come closer to room temperature, preventing thermal shock. Add 5 to 10 minutes to the total baking time (expect 35–40 minutes total) since you are starting with a cold dish.
Flavor Variations to Customize Your Bake
Feel free to toss in extra ingredients with your cut cinnamon rolls before pouring the custard:
Fruity Additions:
- Berries: Add 1 cup of fresh or frozen blueberries, raspberries, or sliced strawberries scattered amongst the dough pieces.
- Apples: Toss 1/2 cup of finely diced, peeled apple pieces (like Granny Smith or Honeycrisp) with a pinch of nutmeg before adding them to the dish.
- Pecans or Walnuts: For a crunchy texture, sprinkle 1/2 cup of chopped nuts over the top of the bake during the last 10 minutes of cooking. This prevents them from burning but allows them to toast lightly.
Decadent Swaps:
- Chocolate Chip Delight: Scatter 1/2 cup of mini semi-sweet chocolate chips into the dish with the cinnamon roll quarters.
- Cream Cheese Filling: Before assembling, take an additional 4 oz block of softened cream cheese, whip it with 2 tbsp of sugar, and dollop small spoonfuls over the dough before pouring the custard.
Avoiding Common Mistakes
- Do Not Skimp on Soaking Time: Rushing the soak (Step 7) is the fastest route to a dry center. Give it at least 5 minutes. If you’re baking from cold (overnight prep), the dough absorbs the custard even more effectively, guaranteeing a creamy result.
- Use the Right Pan Size: A pan smaller than 9×13 will result in uneven cooking the edges will burn before the center sets. A pan too large will spread the rolls too thinly. Stick to the specified size for the best Easy Cinnamon Roll French Toast Bake.
- Temperature Check: If the top is browning too quickly, but the center is still runny, gently cover the dish with aluminum foil and continue baking until the center is set.
Dietary Alternatives
While the original recipe is built on standard dairy and gluten, minor swaps can accommodate different needs:
- Gluten-Free: Seek out gluten-free refrigerated cinnamon rolls (several specialty brands offer these now). The baking time may vary slightly due to different dough densities.
- Dairy-Free: Substitute the whole milk and heavy cream with full-fat coconut milk or oat milk creamer. Note that oat milk may result in a slightly less rich custard, but coconut milk provides excellent fat content. Ensure the canned cinnamon rolls you choose are also dairy-free.
Nutritional Insights and Benefits of This Sweet Morning Treat
Understanding the nutritional profile of this Easy Cinnamon Roll French Toast Bake helps us appreciate it as a delightful, calorie-dense treat best served as an occasional indulgence or a rich centerpiece for a special occasion brunch.
General Nutritional Overview (Per Serving Estimate)
Since this recipe uses highly processed convenience ingredients (canned cinnamon rolls), the primary components are carbohydrates, fats, and sugars. The dairy and eggs, however, contribute essential protein and beneficial nutrients.
Based on 10 servings, the estimated nutritional content per serving (excluding any added variations like nuts or fruit) is approximately:
| Nutrient | Approximate Value |
|---|---|
| Calories | 350 – 450 kcal |
| Total Fat | 18 – 25g |
| Saturated Fat | 8 – 12g |
| Carbohydrates | 40 – 55g |
| Sugars (Added & Natural) | 20 – 30g |
| Protein | 8 – 10g |
Note: These values are estimates and can vary depending on the specific brand of cinnamon rolls used, which often contain high amounts of processed vegetable oils and sugars.
The Benefits of Key Ingredients
While admittedly an indulgent treat, certain ingredients still provide valuable dietary benefits:
- Eggs (Protein & Choline): The six large eggs used in the custard are packed with high-quality protein, which aids in satiety and muscle repair. Eggs are also an excellent source of choline, a vital nutrient essential for brain health and metabolism.
- Dairy (Calcium & Vitamin D): The milk and heavy cream contribute essential calcium for bone health and typically contain Vitamin D (if fortified), which supports immune function and calcium absorption.
- Cinnamon (Antioxidants): Beyond the incredible flavor, cinnamon is known for its powerful antioxidant properties. It contains compounds that may help reduce inflammation and blood sugar levels, although the quantity used here is small.
Serving Suggestion for Balance
Because the Easy Cinnamon Roll French Toast Bake is rich in carbohydrates and fats, it is recommended to pair it with sides that offer dietary fiber and micronutrients to create a more balanced brunch:
- Fresh Fruit Salad: Serve with a large bowl of berries, citrus, and melons to boost vitamins and fiber intake.
- Lean Protein: A side of scrambled egg whites, turkey bacon, or sausage can balance the sweet profile and increase protein content, helping to stabilize energy levels post-meal.
This dish is all about delicious enjoyment. When eaten in moderation as part of a balanced diet, this cinnamon roll French toast casserole offers a truly satisfying start to any special day.
Frequently Asked Questions (FAQ) About Easy Cinnamon Roll French Toast Bake
We’ve compiled answers to the most common questions people ask when making this delightful Easy Cinnamon Roll French Toast Bake.
Frequently Asked Questions (FAQs)
Can I use smaller or larger cans of refrigerated cinnamon rolls for the Easy Cinnamon Roll French Toast Bake?
Yes, but you may need to adjust the custard ratio slightly. The recipe calls for approximately 25 ounces of dough total (two 12.4 oz cans). If your rolls are smaller, ensure the pieces still cover the 9×13 inch pan base snugly. If you use significantly more dough, you may need an extra egg and a splash more milk to ensure all the dough is thoroughly soaked and doesn’t dry out during baking.
How do I prevent my cinnamon roll French toast casserole from being soggy?
To prevent sogginess, ensure you cut the rolls into four quarters to maximize surface exposure for even absorption and cooking. The most crucial step is achieving the correct internal temperature during baking; the center must be fully set, which usually takes about 30 minutes at 375°F. If the top browns too quickly, cover it loosely with foil for the remainder of the bake time.
Can I make this Easy Cinnamon Roll French Toast Bake the night before?
Absolutely! This casserole is an excellent candidate for overnight preparation. Assemble the entire dish (cutting, adding custard, covering) and refrigerate it overnight. The long soak improves the texture. When ready to cook, bake straight from the refrigerator, but plan on adding an extra 5-10 minutes to the total cook time to account for the cold starting temperature.
What are the best toppings besides the provided icing?
While the included icing is a must, you can elevate your Easy Cinnamon Roll French Toast Bake with fresh berries, a sprinkle of powdered sugar, a drizzle of pure maple syrup, or a scoop of vanilla ice cream for true dessert decadence. You could also create a homemade cream cheese frosting using softened cream cheese, butter, and powdered sugar for an extra rich topping.
How should I store leftovers of the cinnamon roll French toast casserole?
Leftovers should be cooled completely, covered tightly, and refrigerated for up to 3 days. To reheat individual servings, use a microwave (for a softer result) or place portions in a preheated oven at 350°F (175°C) for 10-15 minutes until warmed through and the edges are slightly crispy again.
Conclusion: Your New Favorite Breakfast is the Easy Cinnamon Roll French Toast Bake
We’ve walked through every step required to create the ultimate breakfast mashup: the Easy Cinnamon Roll French Toast Bake. From the quick 15-minute prep using convenient refrigerated dough to the rich, vanilla-cinnamon custard and the final, glossy glaze, this recipe guarantees a stress-free start to any day. It delivers the sticky, sweet satisfaction of a cinnamon roll with the soft, comforting texture of baked French toast casserole.
Remember the key takeaways for success:
- Quartering the Rolls: Ensures deep absorption of the custard.
- The Custard: Use whole milk and heavy cream for maximum richness.
- The Soak: Do not skip the 5–10 minute pre-bake soak for a creamy interior.
Whether you’re hosting a large holiday gathering, seeking a simple weekend indulgence, or just craving the comforting flavor of cinnamon and vanilla, this quick cinnamon roll bake is guaranteed to be a roaring success. This is more than just a recipe; it’s a breakfast solution that proves you don’t need to spend hours in the kitchen to achieve phenomenal results.
Try the Easy Cinnamon Roll French Toast Bake this weekend and let us know what you think! Did you add berries? Did you make it overnight? Share your experiences and photos in the comments below. Don’t forget to share this article with friends and family who deserve a delicious, easy start to their day!

EASY CINNAMON ROLL FRENCH TOAST BAKE
Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C). Lightly grease a standard 9x13 inch baking dish with the tablespoon of butter or cooking spray.
- Open the canned cinnamon rolls. Set the included icing packets aside for later use.
- Place each cinnamon roll flat on a cutting board. Using a sharp knife or kitchen scissors, cut each roll into four equal pieces (quarter them).
- Scatter the cut cinnamon roll pieces evenly across the bottom of the prepared 9x13 inch baking dish. The pieces should fill the pan and touch each other, but do not compress them too tightly.
- In a large bowl, whisk together the 6 large eggs, 1/2 cup whole milk, 1/4 cup heavy cream, 1 teaspoon vanilla extract, and 1/2 teaspoon ground cinnamon. Whisk until the mixture is completely uniform, slightly frothy, and no streaks of egg yolk remain.
- Carefully pour the liquid custard mixture evenly over the scattered cinnamon roll pieces in the baking dish. Ensure every piece is thoroughly covered and coated by the egg mixture.
- Allow the bake to sit undisturbed for 5 to 10 minutes to allow the cinnamon rolls to fully absorb the liquid. This ensures a moist interior.
- Place the baking dish into the preheated 375°F (190°C) oven. Bake for 28 to 32 minutes, or until the top is golden brown, the center is set, and a knife inserted near the center comes out clean.
- Remove the French toast bake from the oven and place it on a wire rack.
- Prepare the reserved icing packets. If the icing is too thick, place the sealed packets in a bowl of warm water for a few minutes or microwave them (unsealed, in a separate bowl) for 5 to 10 seconds to loosen the consistency.
- Snip the corner of the icing packets and generously drizzle all the icing over the warm French toast bake. Serve immediately while warm.