Overnight French Toast

French toast casserole in a white baking dish.

Prep the night before then bake this easy overnight French toast casserole in the morning. With a brown sugar streusel and berry topping, it's perfect for holiday brunch!

Prep Time: 15

Cook Time: 1

Chill: 3

Total Time: 4 15

Servings:

Ingredients

French Toast

1 loaf day-old French bread , cubed (about 10 cups) (sour dough or challah work great too)
2 cups whole milk
7 large eggs
¾ cup light brown sugar , packed
¾ teaspoon ground cinnamon
Pinch Kosher salt

Topping

½ cup salted butter , cubed
½ cup all-purpose flour
½ cup light brown sugar , packed
1 cup berries (I used frozen)

Instructions

French Toast

Butter or grease a 9×13-inch casserole dish.
Layer 10 cups bread cubes evenly in the pan, equaling about 2 layers. In a medium bowl, beat 2 cups milk, eggs, 3/4 cup brown sugar, 3/4 teaspoon cinnamon, and pinch of salt.
Pour evenly over the bread, making sure to coat each piece. Cover with aluminum foil and chill at least 3 hours or up to overnight.

Topping

In a medium bowl, mix together 1/2 cup butter, 1/2 cup flour, and 1/2 cup brown sugar with a pastry cutter or two knives. Use your hands if needed to make crumbs. Cover and chill.
When ready to bake, preheat the oven to 350°F. Sprinkle the topping over the bread and evenly disperse 1 cup berries on top. Bake uncovered 50 to 60 minutes, or until the top is lightly browned and the center is cooked through.
Enjoy by itself or topped with syrup.

Notes

Variations: Swap the berries for sliced apples or peaches, or omit the fruit altogether and mix in some chopped walnuts or pecans. You can also add some vanilla extract or nutmeg to the egg mixture to give it an extra boost of flavor.

Storage: Leftovers will last in an airtight container in the refrigerator up to 3 days.

Nutrition