French Toast Casserole Recipe (Custardy, Golden & Easy)

Prep Time: 15 minutes | Cook Time: 45 minutes | Total Time: 1 hour (plus optional overnight soak) | Servings: 8 | Calories: 380 kcal per serving

This French toast casserole is the ultimate breakfast indulgence. It features thick cubes of buttery brioche soaked in a rich, vanilla-scented custard, topped with a crispy cinnamon-streusel topping. Unlike traditional French toast, which requires standing over a stove flipping individual slices, this version allows you to bake everything at once in a single dish.

It is the perfect solution for holiday mornings, brunches, or weekend treats. The edges become golden and crisp, while the center remains soft and bread-pudding-like. It is decadent, comforting, and guaranteed to make your kitchen smell like a professional bakery.

One hour from start to finish if baking immediately, though it is even better when prepared the night before. A foolproof, crowd-pleasing dish that turns basic ingredients into an extraordinary meal.

Why You Will Love This Recipe

French toast casserole is a breakfast game-changer. Here is why this specific recipe is a standout:

• Make-ahead convenience. You can assemble the entire dish the night before and simply pop it in the oven when you wake up.
• The perfect texture. Using sturdy bread like brioche or challah ensures the casserole stays custardy in the middle without becoming soggy.
• The streusel topping. The addition of a brown sugar and butter crumble adds a necessary crunch that sets this apart from basic French toast.
• Feeds a crowd. No more cold French toast. Everyone gets to eat at the same time, hot right out of the oven.
• Incredibly versatile. It serves as a beautiful base for fresh berries, maple syrup, whipped cream, or even a dusting of powdered sugar.

Ingredients

For the Casserole Base:

• 1 large loaf (approx. 1 lb) Brioche or Challah bread, cut into 1-inch cubes
• 6 large eggs
• 2 cups whole milk
• ½ cup heavy cream
• ½ cup granulated sugar
• 1 tablespoon vanilla extract
• 1 teaspoon ground cinnamon
• ¼ teaspoon salt

For the Cinnamon Streusel Topping:

• ½ cup all-purpose flour
• ½ cup light brown sugar, packed
• 1 teaspoon ground cinnamon
• ¼ teaspoon salt
• ½ cup (1 stick) cold unsalted butter, cut into small cubes

Equipment Needed

• 9×13 inch baking dish
• Large mixing bowl
• Medium mixing bowl (for topping)
• Whisk
• Pastry cutter or fork
• Measuring cups and spoons

Instructions

• Step 1: Grease a 9×13 inch baking dish with butter or non-stick spray. Place the bread cubes evenly into the dish.
• Step 2: In a large mixing bowl, whisk together the eggs, milk, heavy cream, granulated sugar, vanilla, cinnamon, and salt until well combined.
• Step 3: Pour the egg mixture evenly over the bread cubes. Use a spatula to gently press down on the bread to ensure every piece is soaking in the custard.
• Step 4: (Optional) Cover the dish with foil and refrigerate for 2 hours or overnight. If baking immediately, let it sit for at least 15 minutes to absorb the liquid.
• Step 5: Preheat your oven to 350°F (175°C).
• Step 6: Prepare the topping: In a medium bowl, mix the flour, brown sugar, cinnamon, and salt. Use a pastry cutter or fork to cut in the cold butter until the mixture resembles coarse crumbs.
• Step 7: Sprinkle the streusel topping evenly over the soaked bread.
• Step 8: Bake for 45 to 50 minutes. The casserole is done when the top is golden brown and the center is set (not liquidy).
• Step 9: Let it stand for 5 minutes before slicing. Serve with maple syrup or fresh fruit.

@/jamiemba

Substitutes & Swaps

• Bread: If you can’t find brioche, French bread or sourdough work well. Avoid thin, soft white sandwich bread as it will fall apart.
• Milk/Cream: For a lighter version, use all whole milk. For a dairy-free version, use full-fat oat milk and a vegan butter substitute.
• Sugar: Maple syrup or honey can be used in the custard base instead of granulated sugar.
• Butter: Salted butter can be used for the topping; just omit the extra pinch of salt in the streusel.

Variations

• Blueberry Lemon: Fold 1 cup of fresh blueberries into the bread cubes and add 1 tablespoon of lemon zest to the custard.
• Apple Pie Style: Sauté two diced apples with cinnamon and sugar, then layer them in with the bread.
• Pecan Crunch: Add ½ cup of chopped pecans to the streusel topping for extra texture.
• Chocolate Chip: Sprinkle ½ cup of semi-sweet chocolate chips between the layers of bread cubes before pouring the custard.

Tips & Tricks

• Use stale bread. Slightly dry or day-old bread absorbs the custard better without becoming mushy. If your bread is fresh, toast the cubes in a 300°F oven for 10 minutes first.
• Don’t over-whisk the eggs. Whisk just until the yolks and whites are incorporated to keep the custard smooth.
• Cold butter is key. For the best streusel, make sure your butter is very cold. This creates those distinct, crunchy crumbs rather than a melted paste.
• Check the center. Insert a knife into the middle; it should come out clean. if the top is browning too fast but the middle is wet, cover loosely with foil for the last 10 minutes.
• The overnight soak. While you can bake this immediately, an overnight soak allows the bread to fully hydrate, resulting in a much richer, more uniform texture.

Nutrition Information (Per Serving)

Nutrient	Amount
Calories	380 kcal
Total Fat	20g
Saturated Fat	11g
Carbohydrates	42g
Fiber	2g
Sugars	22g
Protein	10g
Sodium	340mg

Frequently Asked Questions (FAQs)

Can I freeze French toast casserole?

Yes! You can freeze it before or after baking. If freezing before, thaw it in the fridge overnight before baking. If after, wrap slices individually and reheat in the oven or microwave.

My casserole is soggy. What happened?

This usually happens if the bread wasn’t sturdy enough or if too much liquid was used. Stick to thick-cut, crusty breads and ensure you measure the milk and cream accurately.

Can I use half-and-half?

Absolutely. You can replace the milk and heavy cream mixture with an equal amount of half-and-half for a perfectly balanced custard.

Do I have to use a 9×13 pan?

You can use a slightly smaller, deeper dish (like a 2-quart baker), but you will likely need to increase the baking time by 10–15 minutes.

The Ultimate Brunch Centerpiece

French toast casserole is the perfect way to start a slow morning. It feels like a celebration in a dish, bringing together the best parts of breakfast and dessert. Whether it’s for a holiday or just a lazy Sunday, this recipe ensures you spend less time at the stove and more time at the table.

Make this when you want a warm, comforting meal that feels special.

Made this French toast casserole? Tell me in the comments if you let it soak overnight or if you added any fun mix-ins like fruit or nuts!