This easy Overnight French Toast Casserole is the perfect brunch dish for a crowd. It’s topped with an irresistible cinnamon sugar topping!
Whether it’s a holiday brunch or a cozy weekend morning at home, this easy Overnight French Toast Casserole with Cinnamon Sugar is perfect for the occasion. Along with some Praline Bacon, it’ll be the perfect dose of comfort food to start your day!
The casserole is soft and custardy on the bottom and crunchy on top, thanks to the cinnamon-sugar-loaded bread cubes poking out from the casserole. Best of all, it’s really easy to make.
It’s made to sit in the refrigerator overnight, so start it the night before. In the morning, you’ll just need to bake it, make the coffee, and brunch is served!
And I couldn’t stop at just one french toast casserole on the blog—here’s another one for Stuffed French Toast that is a big crowd pleaser.
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What’s the best bread for french toast casserole?
Per its name, french bread is ideal for Overnight French Toast Casserole.
Choose a loaf that’s slightly crusty on the outside and soft on the inside. I got mine at the bakery counter at my local grocery store. The crust adds some nice texture to the top of the casserole!
You can also use brioche, challah, or Italian bread.
- A one-pound loaf of french bread is the base of this recipe. It should be soft in the middle and a little crusty on the outside.
- Milk, eggs, and vanilla create a rich vanilla custard that the bread will soak up.
- Cinnamon and sugar dot the top of the casserole, which adds crunch and a gorgeous golden hue.
How to make overnight french toast casserole
Start the night before by slicing the loaf of french bread into 1 inch cubes. I find that a large serrated knife is easiest for this—it cuts through the crust easily and doesn’t squish the soft and fluffy interior.
Place the bread in a greased 13×9 inch casserole dish. I grease mine with an oil mister though cooking spray from the grocery store works great, too.
Whisk the eggs, milk, salt, sugar, and vanilla extract in a large bowl, then pour the mixture over the bread.
Press on the bread gently with your hands so it soaks up the vanilla custard. Then, cover and refrigerate the casserole overnight (or for a minimum of two hours).
The next morning, dot the casserole with butter, and sprinkle cinnamon sugar on top.
Bake for 45–50 minutes, or until golden brown. Let sit for 5 minutes before serving.
Then, cut into slices and serve with maple syrup.
You can also see a step-by-step tutorial of this recipe here.
Frequently Asked Questions
Give the casserole at least two hours in the refrigerator before baking. You can keep it in the refrigerator for up to 12 hours, if desired.
To reheat french toast casserole, place the entire casserole dish in a 350°F oven for 15–20 minutes, or until warm throughout. To reheat slices of the casserole, you can either reheat them in the oven (for about 5–8 minutes) or in the microwave (1–2 minutes on high).
Replace the cow’s milk with almond milk or soy milk, and replace the butter with a vegan butter.
French toast casserole is delicious on its own, but if you want to change it up, here are a few ideas:
– add a half of a cup of chocolate chips
– add a cup of fresh blueberries or sliced strawberries (or a mix of the two)
– drizzle the finished casserole with caramel sauce instead of maple syrup
When adding either the chocolate chips or fruit, toss them with the bread and then add the vanilla custard.
How to reheat french toast casserole
After it’s cooked, any leftovers should be stored in the refrigerator.
To reheat, preheat the oven to 350°F. Place the casserole dish in the oven and bake for 15–20 minutes for larger portions of the casserole, or 5–8 minutes for individual slices.
You can also reheat individual slices in the microwave for 1–2 minutes on high.
Maple syrup is a must for Overnight French Toast Casserole! It’s just lightly sweet on its own, so the syrup is the perfect complement.
For a protein-packed side dish, scrambled eggs or a quiche (like this asparagus & gruyere quiche) would make a great accompaniment.
Have you tried this recipe? Please leave a ⭐️⭐️⭐️⭐️⭐️ rating and/or comment below!
Overnight French Toast Casserole with Cinnamon Sugar
For the casserole:
- 1 lb loaf french bread, cut into 1 inch cubes (about 10 cups)
- 8 eggs
- 3 cups milk
- 1 tablespoon granulated sugar
- ½ teaspoon salt
- 1 teaspoon vanilla extract
For the topping:
- 2 tablespoons unsalted butter, cut into small cubes
- 3 tablespoons granulated sugar
- 2 teaspoons cinnamon
- To serve: maple syrup
- Place the bread in a greased 13×9 inch baking dish.
- In a large bowl, whisk together the eggs, milk, 1 tablespoon granulated sugar, salt, and vanilla extract. Pour the mixture over the bread cubes.
- Press the bread cubes lightly with your hands so that they soak up the vanilla custard.
- Cover and refrigerate overnight (or for at least two hours).
- When you're ready to bake the casserole, preheat the oven to 350°F.
- Uncover and dot the casserole with the butter cubes, then sprinkle with cinnamon sugar.
- Bake for 45–50 minutes, or until the top is golden brown and the custard is set.
- Let stand for 5 minutes, then cut into slices and serve with maple syrup.