Description
Indulge in this decadent Best Overnight French Toast Casserole that makes mornings a breeze. With a rich custard base and a buttery cinnamon crumble topping, this dish is perfect for holidays or special occasions.
Ingredients
Main Casserole:
- 1 loaf French bread (about 12–16 oz), cut into 1-inch cubes
 - 8 large eggs
 - 2 cups whole milk
 - 1/2 cup heavy cream
 - 1/2 cup granulated sugar
 - 1/4 cup brown sugar
 - 1 tablespoon vanilla extract
 - 1 teaspoon ground cinnamon
 - 1/4 teaspoon ground nutmeg
 - 1/4 teaspoon salt
 
Topping:
- 1/2 cup all-purpose flour
 - 1/2 cup brown sugar
 - 1 teaspoon ground cinnamon
 - 1/4 teaspoon salt
 - 1/2 cup unsalted butter, cold and cut into small pieces
 
Instructions
- Prepare Casserole: Grease a 9×13-inch baking dish with butter or nonstick spray. Place cubed French bread in the dish.
 - Make Custard Mixture: Whisk together eggs, milk, cream, sugars, vanilla, spices, and salt. Pour over bread, press down, cover, and refrigerate overnight.
 - Prepare Topping: Mix flour, sugar, cinnamon, and salt. Cut in butter to form crumbs. Refrigerate.
 - Bake: Preheat oven. Sprinkle topping over casserole. Bake until set and golden. Let cool slightly before serving.
 
Notes
- Challah or brioche can be used for a richer texture.
 - To make ahead without chilling, let the bread soak for at least 30 minutes.