This overnight brioche french toast casserole recipe with a buttery cinnamon streusel is the perfect easy and sweet breakfast. Prepare it the night before, bake it in the morning, and top it with fresh berries and powdered sugar. Everyone will love it!
The best overnight brioche french toast casserole
This overnight french toast casserole made with soft and fluffy brioche bread is the perfect dish to serve at a Sunday brunch, party, or family breakfast. It takes under 10 minutes to prepare the night before, and then all you need to do is bake it in the morning!
Each bite melts in your mouth. Once baked, the french toast is soft and warm on the inside, with a little crunch on top. Plus, we can’t forget the cinnamon streusel on top. It’s honestly the best part.
Why you’ll love this recipe:
- Make the night before
- Perfectly sweet
- Breakfast, brunch, or dessert
- Perfect for parties
- Kids will love it!
This brioche french toast casserole calls for a handful of simple ingredients. You probably have everything in your pantry already! Here is a list of ingredients, so you have everything prepared:
- Brioche Bread: First up, grab 1 loaf (14 – 16oz) of brioche bread and cut it into 1-inch cubes. Once soaked overnight and baked, brioche is warm, soft, and delicious! You can also use Texas Toast or Challah.
- Oat Milk or Almond Milk: Add in 1 and 2/3 cups of oat milk or almond milk. It makes this french toast casserole so rich. You can also you 2% or whole cow’s milk.
- Eggs: Grab 6 eggs to help this casserole hold together. It also adds protein!
- Maple Syrup: For a little dash of natural sweetness, add in 1/4 cup of maple syrup.
- Vanilla Extract: 1 Tablespoon seems like a lot of vanilla extract, but I promise it adds the BEST flavor.
- Ground Cinnamon: Finally, 1 teaspoon of cinnamon adds that warm, cozy, and delicious classic french toast taste.
- All-Purpose Flour: For the base of this cinnamon streusel, grab 1/3 cup of all-purpose flour. You can use gluten-free if needed.
- Coconut Sugar: The key to making the crumble and sweet streusel so delicious! Grab 1/3 cup. You can also use light brown sugar.
- Ground Cinnamon: For all the good flavors.
- Butter: Next, 5 Tablespoons of cold, cubed butter to make this streusel melt in your mouth.
Kitchen tools needed
You’ll need a few kitchen utensils to make this recipe – don’t worry, I bet you have all of them already!
- Cutting Board
- 9×13 or 9×11 Baking Dish
- Measuring Tools: 1 teaspoon, 1 Tablespoon, 1/4 cup, 1/3 cup, 1/2 cup, and 1 cup.
How to make overnight brioche french toast casserole
This brioche french toast casserole comes together in two parts. We start by preparing and soaking the french toast overnight; then, we bake it the following morning. Here are detailed step-by-step instructions for any level baker:
First, lightly grease a 9×13 baking dish with nonstick spray or butter. Then, add the cubed brioche to the greased baking dish.
Next, in a medium bowl, whisk together almond milk, eggs, maple syrup, vanilla extract, and cinnamon. Pour mixture over bread and use your hands to make sure all pieces of bread are saturated. Wrap the baking dish with tin foil and let it sit in the refrigerator for at least 4 hours or overnight, if possible.
Once the casserole is ready to bake, preheat the oven to 350°F. Then, make the streusel topping by adding all the ingredients to a small mixing bowl. Use two knives or your hands to “cut” the cubed butter into the flour. It should be crumbly.
Once the oven is heated, remove the tin foil, evenly sprinkle the streusel on top of the casserole, and bake for 40 – 50 minutes, until the top is golden brown. If browning too fast, add tin foil back on top during the last 15 minutes. Remove from oven and let cool for 5 minutes.
Sprinkle with powdered sugar, if desired, and serve with fresh berries. Enjoy!
- Fresh berries (strawberries, blueberries, raspberries, or blackberries)
- Banana slices
- Maple syrup
- Powdered sugar
- Peanut butter or almond butter
Easy ingredient substitution tips
This brioche french toast casserole is incredibly as is, but here are ingredient substitution suggestions if you are missing an ingredient or two:
- Oat or Almond Milk: If you don’t have almond or oat milk, try 2% or whole cow’s milk!
- Brioche Bread: Use Texas Toast or Challah.
- Maple Syrup: You can use honey here.
- All-Purpose Flour: Try gluten-free all-purpose flour.
- Butter: Use vegan butter or refined coconut oil (solid) and chilled.
- Coconut Sugar: Use light brown sugar.
Frequently Asked Questions
What is brioche bread?
Brioche bread is a rich and soft bread that has a flaky crust and is very fluffy on the inside. It’s made with milk, butter, and eggs, which makes it much “richer” than typical bread. It is very similar to Challah bread and perfect for making french toast.
Can I use any type of bread?
I highly recommend using brioche bread, but if you do not have it, you can use challah, Texas Toast, or even French Bread.
Can I make french toast casserole the night before?
Yes! I actually recommend preparing the french toast casserole the night before and then baking it in the morning. It has to soak for at least 4 hours anyways.
Can I make the streusel topping in advance?
Yes, you can certainly make the streusel topping in advance too. Keep it cold and store it in a plastic bag in the fridge until you are ready to bake the french toast casserole.
Can I make it gluten free and dairy free?
Yes, to make it gluten free, simply use gluten-free brioche bread. To make it dairy free, use room temperature coconut oil in place of the butter.
Why is my french toast casserole soggy?
If your french toast casserole is soggy, then one of two things happened: (1) it did not soak long enough, or (2) you used the wrong bread. Make sure to use a soft bread like Brioche, Challah, or Texas Toast.
How to store and reheat leftovers:
Store leftovers by covering the original baking dish with aluminum foil or plastic wrap or in airtight containers. Store in the refrigerator for up to 3 – 4 days.
For best results, reheat in the original baking dish at 350°F for 5 – 10 minutes until warm and crisp. For quick reheating, use a microwave.
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Did you make this recipe?
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Brioche French Toast Casserole
French Toast Casserole:
- ⅓ cup all-purpose flour, spoon & leveled
- ⅓ cup coconut sugar or light brown sugar
- ½ tsp ground cinnamon
- 5 Tbsp cold unsalted butter, cubed
- Optional Topping: fresh berries, maple syrup and/or powdered sugar for topping
Prepare (Night Before):
- Lightly grease a 9x13 baking dish with nonstick spray or butter.
- Add cubed brioche to the greased baking dish.
- In a medium bowl, whisk together almond milk, eggs, maple syrup, vanilla extract, and cinnamon. Pour mixture over bread and use your hands to make sure all pieces of bread are saturated.
- Wrap the baking dish with tin foil and let it sit in the refrigerator for at least 4 hours or overnight, if possible.
Bake (Day Of):
- Once ready, preheat the oven to 350°F.
- Make the streusel topping by adding all the ingredients to a small mixing bowl. Use two knives or your hands to “cut” the cubed butter into the flour. It should be crumbly.
- Once the oven is heated, remove the tin foil, evenly sprinkle the streusel on top of the casserole, and bake for 40 - 50 minutes, until the top is golden brown. If browning too fast, add tin foil back on top during the last 15 minutes. Remove from oven and let cool for 5 minutes.
- Sprinkle with powdered sugar, if desired, and serve with fresh berries. Enjoy!
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