This best-loved overnight French toast casserole is perfect for making ahead of time! It’s eggy with a hint of cinnamon.
Ingredients
French Toast
- 1 loaf sourdough bread or brioche, challah or French bread
- 8 large eggs
- 2 cups milk
- ½ cup heavy cream
- 1 tablespoon vanilla extract
- ¾ cup sugar
Topping
- ½ cup all-purpose flour
- ½ cup packed light brown sugar
- 1 teaspoon ground cinnamon
- ¼ teaspoon salt
- ½ cup cold unsalted butter cut into pieces
Instructions
- Cut bread into 1-inch cubes and scatter evenly in a greased 9-x-13-inch baking dish.
- In a medium bowl, mix eggs, milk, heavy cream, vanilla, and sugar together, then pour evenly over the bread.
- Cover the dish with plastic wrap and refrigerate for at least 4 hours, or overnight.
- To make the topping, mix flour, brown sugar, cinnamon, and salt in a medium bowl. Cut butter into this mixture until crumbly. Place the topping in a small resealable plastic bag and refrigerate overnight as well.
- When ready to bake, preheat the oven to 350°F.
- Unwrap the baking dish and sprinkle the topping evenly over the bread.
- Bake, uncovered, for 45–60 minutes, depending on how soft you like it.

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