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Easy Overnight French Toast Casserole with Streusel Topping

A close-up of a moist slice of french toast casserole featuring a thick, gooey cinnamon streusel topping.
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Prepare this simple, make-ahead French toast casserole the night before for a stress-free morning. It bakes into a warm, gooey breakfast with a cinnamon custard and a crunchy topping, perfect for brunch or feeding a crowd.

Ingredients

Scale
  • 1 loaf (about 1 pound) brioche or challah bread, cut into 1-inch cubes
  • 12 large eggs
  • 2 cups whole milk
  • 1 cup heavy cream
  • 3/4 cup granulated sugar
  • 2 teaspoons vanilla extract
  • 2 teaspoons ground cinnamon
  • 1/2 teaspoon ground nutmeg
  • 1/4 teaspoon salt
  • 1/2 cup butter, melted (for topping)
  • 1 cup all-purpose flour (for topping)
  • 1/2 cup packed brown sugar (for topping)
  • 1/2 cup rolled oats (for topping)
  • 1/4 cup chopped pecans (for topping)

Instructions

  1. Lightly grease a 9×13 inch baking dish. Arrange the bread cubes evenly in the prepared dish.
  2. In a large bowl, whisk together the eggs, milk, heavy cream, granulated sugar, vanilla extract, cinnamon, nutmeg, and salt until fully combined. This is your custard mixture.
  3. Slowly pour the custard mixture evenly over the bread cubes, pressing down gently to help the bread absorb the liquid.
  4. Cover the dish tightly with plastic wrap. Refrigerate for at least 4 hours, or preferably overnight.
  5. When ready to bake, preheat your oven to 350°F (175°C). Remove the plastic wrap.
  6. Prepare the streusel topping: In a medium bowl, combine the melted butter, flour, brown sugar, oats, and pecans. Mix with a fork until crumbly.
  7. Sprinkle the streusel topping evenly over the soaked bread.
  8. Bake for 45 to 55 minutes, or until the casserole is puffed, golden brown, and the center is set (a knife inserted near the center comes out clean).
  9. Let the casserole cool for 10 minutes before serving. Serve warm with maple syrup.

Notes

  • Using day-old bread works best for absorbing the custard without becoming too mushy.
  • For a crispier topping, you can add the topping just 15 minutes before the casserole is done baking instead of at the beginning.
  • This recipe is excellent for a holiday brunch because you complete all the prep the day before.

Nutrition

Find it online: https://devourdish.com/french-toast-casserole-recipe/