overnight cinnamon roll french toast casserole is a cozy make-ahead breakfast baked from pieces of already-baked cinnamon rolls soaked in a vanilla-cinnamon custard. You assemble the dish the night before and bake it in the morning, leaving more time for a relaxed holiday breakfast.
Using day-old baked cinnamon rolls is a helpful trick: their drier edges absorb the egg mixture without disappearing into mush. The overnight rest is for soaking, not proofing raw dough. An optional icing drizzle finishes the casserole after baking.
Why You Will Love These overnight cinnamon roll french toast casserole
A rich custard settles into the cinnamon swirls, creating a soft interior and golden top. This is also a practical way to repurpose cinnamon rolls that are slightly past their freshest day.
Overnight Cinnamon Roll French Toast Casserole: Ingredients
Yield: 8 generous breakfast portions. Prep: 15 minutes plus overnight chilling. Cook: 40–50 minutes. Oven: 350°F (175°C).
Ingredients
- 8 cups cubed, fully baked cinnamon rolls (about 6–8 medium rolls)
- 6 large eggs
- 1½ cups whole milk
- ½ cup heavy cream
- ¼ cup pure maple syrup, optional
- 2 teaspoons vanilla extract
- 1 teaspoon ground cinnamon
- ¼ teaspoon fine salt
- Butter for greasing the baking dish
- For serving: icing from the cinnamon rolls, a simple powdered sugar glaze or maple syrup
How to Make overnight cinnamon roll french toast casserole
- Cut baked cinnamon rolls. Use cinnamon rolls that have already been fully baked and cooled, ideally a day old. Cut into roughly 1½-inch pieces and place in a generously buttered 9-by-13-inch baking dish.
- Make the custard. Whisk eggs, milk, cream, maple syrup if using, vanilla, cinnamon and salt until thoroughly blended. Break up any visible strands of egg white.
- Soak overnight. Pour custard evenly over the roll pieces and press down lightly so the bread absorbs liquid. Cover and refrigerate for 8–12 hours. Do not leave the egg mixture at room temperature overnight.
- Prepare for baking. The next morning heat oven to 350°F (175°C). Remove the dish from the refrigerator while the oven heats, but do not leave it out for an extended period.
- Bake. Cover loosely with foil and bake 25 minutes. Remove the foil and bake another 15–25 minutes until the top is golden and the center is set. An instant-read thermometer inserted into the egg-rich center should read at least 160°F (71°C).
- Rest and serve. Let stand 10 minutes. Drizzle with warmed cinnamon-roll icing or a little maple syrup just before serving; adding it too early can make the top overly sweet and wet.
Tips for the Best overnight cinnamon roll french toast casserole
- Use baked—not raw—rolls: This overnight custard method relies on fully baked cinnamon rolls. Unbaked canned dough requires a different formula and timing.
- Do not drown the rolls: If the rolls are very small or delicate, reserve some custard and add only as needed so the dish is moist but not swimming.
- Bake covered first: Foil prevents the top from overbrowning while the center sets.
- Verify doneness: The center should not contain liquid egg custard. A food thermometer removes uncertainty.
Variations to Try
Add ½ cup toasted chopped pecans over the casserole before the final uncovered bake, or fold in a small handful of raisins. For a fruitier version, add thinly diced apples that have been briefly sautéed to remove excess moisture.
How to Serve or Gift Them
Serve with fresh orange slices, berries and coffee for balance. If you need additional breakfast ideas, our homemade cinnamon roll recipe is useful for preparing the rolls themselves. Explore festive Christmas menu ideas for the rest of the day.
Make-Ahead and Storage
Make Ahead
Assemble the casserole 8–12 hours ahead and keep tightly covered in the refrigerator. Do not refrigerate raw egg custard for multiple days. For an earlier start, bake it completely, refrigerate and reheat covered until hot throughout.
Storage
Refrigerate leftovers within two hours and use within three to four days. Reheat individual portions until steaming hot. Freeze baked, cooled portions individually if desired; the bread may be slightly softer after thawing.
overnight cinnamon roll french toast casserole FAQ
Can I make it with canned cinnamon rolls?
Yes, but bake the canned rolls fully first and allow them to cool. Do not use unbaked canned dough in this overnight custard recipe.
Does the dish need to sit overnight?
Overnight soaking gives the most even texture. A shorter two-hour refrigerated soak may work with soft roll pieces, but the center can be less consistent.
Why is my casserole soggy?
It may have too much custard for the amount of bread or need more time in the oven. Use fully baked rolls and check the center.
Can I add cream cheese icing?
Yes. Drizzle over the casserole after baking and resting so it melts gently rather than scorching in the oven.
Save These Holiday Baking Ideas
Keep this overnight cinnamon roll french toast casserole recipe close when planning a Christmas cookie tray or sharing something homemade. Check the ingredients before baking, and save the article for the next holiday gathering.
