9x13 French Toast Casserole Recipe for Easy Breakfast Crowds

This 9×13 French Toast Casserole is the perfect make-ahead breakfast dish that’s both comforting and delicious. It combines thick slices of bread soaked in a rich custard, baked to golden perfection, making it ideal for feeding a crowd or enjoying leftovers throughout the week.

Ingredients

1 loaf (about 12 ounces) of day-old brioche or challah bread, cut into 1-inch cubes
8 large eggs
2 cups whole milk
1/2 cup heavy cream
3/4 cup granulated sugar
2 tablespoons pure vanilla extract
1 tablespoon ground cinnamon
1/2 teaspoon ground nutmeg
1/4 teaspoon salt
4 tablespoons unsalted butter, melted (plus extra for greasing the pan)

Optional topping: powdered sugar, maple syrup, fresh berries, or chopped nuts

Instructions

Prepare the baking dish: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish with butter to prevent sticking.
Cube the bread: Cut the day-old brioche or challah into roughly 1-inch cubes. Using slightly stale bread helps it absorb the custard without becoming too mushy.

Mix the custard: In a large mixing bowl, whisk together the eggs, whole milk, heavy cream, sugar, vanilla extract, cinnamon, nutmeg, and salt until smooth and well combined.
Combine bread and custard: Place the bread cubes in the prepared baking dish. Pour the custard mixture evenly over the bread, pressing down gently to ensure all pieces soak up the liquid. Drizzle the melted butter evenly over the top.
Soak: Cover the dish tightly with plastic wrap or aluminum foil and refrigerate for at least 4 hours, preferably overnight. This soaking step allows the bread to absorb the custard fully, resulting in a creamy interior.

Bake: Remove the casserole from the refrigerator about 20 minutes before baking to take off the chill. Bake uncovered in the preheated oven for 45-50 minutes, or until the top is golden brown and the custard is set (a knife inserted in the center should come out clean).
Cool and serve: Let the casserole cool for 10 minutes before serving. Add optional toppings such as powdered sugar, maple syrup, fresh berries, or chopped nuts for added flavor and texture.

Tips

Substitute bread: Brioche and challah are ideal for their rich texture, but you can use French bread, sourdough, or even thick sandwich bread. Avoid very soft or fresh bread as it may get too soggy.

Make it dairy-free: Swap whole milk and heavy cream with coconut milk or almond milk, and use a dairy-free butter substitute for greasing and drizzling.
Storage advice: Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat portions individually for best texture.
Don’t skip soaking: Letting the bread soak overnight is crucial for a custardy, tender interior. If short on time, soak for at least 4 hours, but overnight yields the best results.

Serving Suggestions

This French toast casserole pairs beautifully with a variety of toppings and sides. Drizzle with warm maple syrup or honey and sprinkle powdered sugar on top for a classic touch. Fresh berries such as strawberries, blueberries, or raspberries add a bright, fresh contrast. For added crunch, top with toasted pecans or walnuts. Serve alongside crispy bacon or sausage links for a hearty brunch. A dollop of whipped cream or a scoop of vanilla ice cream can turn this breakfast into a decadent treat for special occasions.

Variations

Customize your French toast casserole by adding mix-ins or flavor twists. Stir in 1 cup of fresh or frozen fruit like blueberries, sliced apples, or chopped peaches before baking for fruity bursts. For a chocolate lover’s version, sprinkle mini chocolate chips between bread layers. Add a streusel topping made from brown sugar, butter, and flour for a crumbly, sweet crust. You can also swap spices or add a splash of orange zest or almond extract to the custard for a unique flavor profile. For a savory twist, omit sugar and cinnamon, add shredded cheese, herbs, and cooked sausage or ham.

Storage and Reheating

Store any leftover casserole covered tightly in the refrigerator for up to 4 days. To reheat, place individual portions on a microwave-safe plate and microwave on medium power for 1-2 minutes until warmed through, or reheat in a preheated 350°F (175°C) oven for 10-15 minutes covered loosely with foil to prevent drying out. For longer storage, French toast casserole can be frozen for up to 2 months. Wrap tightly with plastic wrap and aluminum foil before freezing. Thaw overnight in the refrigerator before reheating as above.

Frequently Asked Questions

Can I use fresh bread instead of day-old bread?
While fresh bread can be used in a pinch, day-old or slightly stale bread is best because it absorbs the custard without becoming overly mushy. If using fresh bread, consider toasting it lightly or drying it out in the oven first to improve texture.

Can I prepare this casserole the morning of serving?
Yes, if you’re short on time, soak the bread for at least 4 hours in the refrigerator. However, soaking overnight yields a richer, custard-like interior and better overall texture.

What type of bread is best for French toast casserole?
Brioche and challah are the top choices due to their tender crumb and slight sweetness, which enhance the flavor and texture. Other sturdy breads like French bread or sourdough work well too, but avoid very dense or whole grain breads unless you prefer a heartier bite.

Can I make this gluten-free?
Yes, you can substitute gluten-free bread varieties, preferably ones that are sturdy and slightly stale to soak up the custard well. Keep in mind the texture may vary depending on the bread brand and type.

How do I know when the casserole is done baking?
The casserole is done when the top is golden brown and a knife inserted into the center comes out clean or with just a slight custardy coating. The edges should be set and not jiggly. Baking times can vary slightly depending on your oven and the bread used.

Can I add nuts or fruit to the casserole before baking?
Yes, adding mix-ins like blueberries, sliced apples, or chopped nuts before baking can enhance flavor and texture. Just fold them gently into the bread and custard mixture before pouring into the baking dish.

This 9×13 French Toast Casserole is a versatile, crowd-pleasing breakfast that’s easy to customize and perfect for holiday mornings or weekend brunch. With its creamy custard-soaked bread and golden crust, it’s sure to become a favorite in your recipe rotation.

9×13 French Toast Casserole Recipe for Easy Breakfast Crowds