There’s nothing better than waking up to the smell of cinnamon and sugar baking away in the oven—especially when you barely had to lift a finger that morning. This Overnight Cinnamon Roll Casserole is your secret weapon for holiday mornings, brunch with guests, or just a lazy weekend when you want something sweet, gooey, and comforting.
And yes, it starts with store-bought cinnamon rolls. No shame in that game—because once it’s baked, drizzled with icing, and served warm, no one will care how you got there.
Why You’ll Love This
This recipe is everything we love about a good breakfast casserole—simple to make, comes together the night before, and feeds a crowd. The texture is somewhere between a cinnamon roll and French toast: soft in the middle, slightly crisp around the edges, and topped with a buttery cinnamon sugar layer that bakes up golden and bubbly.
It’s easy, it’s delicious, and it makes the whole kitchen smell like a bakery. What more could you want from breakfast?
Frequently Asked Questions
Can I use homemade cinnamon rolls?
Definitely! If you’ve got the time (or a frozen batch ready to go), use them. Just make sure they’re baked or par-baked before slicing them into the casserole.
What kind of milk works best?
Whole milk or half-and-half will give you a richer texture, but 2% works fine too. Avoid non-dairy milks with low fat content, as they can make the custard too thin.
Do I have to make it overnight?
Nope! You can prep and bake it the same day. Just let it sit for at least 30–60 minutes before baking so the rolls soak up the custard.
Ingredients
Here’s what you’ll need:
- 2 tubes (8-count each) refrigerated cinnamon rolls (with icing included)
- 4 large eggs
- ¾ cup milk
- 2 teaspoons vanilla extract
- ½ cup maple syrup
- 1 teaspoon ground cinnamon
- 1 tablespoon sugar (for topping)
- 2 tablespoons melted butter (optional, for extra richness)
How to Make Overnight Cinnamon Roll Casserole
Step 1: Prep the rolls
Grease a 9×13-inch baking dish. Open the cinnamon rolls and slice each one into quarters. Scatter them evenly in the dish. Set the icing aside for later.
Step 2: Make the custard
In a medium bowl, whisk together the eggs, milk, vanilla extract, and maple syrup. Pour this mixture evenly over the cinnamon roll pieces.
Step 3: Sprinkle and chill
In a small bowl, mix the cinnamon and sugar together, then sprinkle it over the top. Cover the casserole tightly with foil or plastic wrap and refrigerate overnight (or for at least 6 hours).
Step 4: Bake
When you’re ready to bake, take the casserole out of the fridge and let it sit at room temp while you preheat the oven to 350°F. Bake uncovered for 35–40 minutes, or until the top is golden and the custard is set in the center.
Tips and Ideas
- Make it a little fancy: Add chopped pecans, raisins, or even a handful of mini chocolate chips before baking.
- Change the flavor: Use pumpkin spice instead of cinnamon for a fall twist.
- Serve it with sides: Fresh fruit, scrambled eggs, or a breakfast sausage bake pair perfectly.
- Want a crispier top? Bake uncovered the whole time and broil the last minute or two.
How to Store Leftovers
Leftovers can be stored in the fridge, covered, for up to 3 days. Reheat individual portions in the microwave, or warm the whole dish in the oven at 300°F for 10–15 minutes.
This Overnight Cinnamon Roll Casserole is one of those no-fuss recipes you’ll reach for again and again. Whether it’s Christmas morning or just a chilly Sunday when you want something special, it’s the perfect way to start the day—sweet, simple, and full of cinnamon-sugar goodness.
Overnight Cinnamon Roll Casserole
Ingredients
- 2 tubes cinnamon rolls with icing
- 4 large eggs
- ¾ cup milk
- ½ cup maple syrup
- 2 tsp vanilla extract
- 1 tsp cinnamon
- 1 tbsp sugar
- Optional: 2 tbsp melted butter
Instructions
- Make it a little fancy: Add chopped pecans, raisins, or even a handful of mini chocolate chips before baking.
- Change the flavor: Use pumpkin spice instead of cinnamon for a fall twist.
- Serve it with sides: Fresh fruit, scrambled eggs, or a breakfast sausage bake pair perfectly.
- Want a crispier top? Bake uncovered the whole time and broil the last minute or two.
Looks delicious