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Overnight French Toast Casserole with Crumble Topping

A square slice of baked french toast casserole topped with a thick, sugary cinnamon streusel topping.
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Prepare this rich, custardy French Toast Casserole the night before. Bake it in the morning for an easy, crowd-pleasing breakfast or brunch centerpiece.

Ingredients

Scale
  • 1 loaf (about 1 pound) thick-cut bread (like brioche or challah), cut into 1-inch cubes
  • 6 large eggs
  • 2 cups whole milk
  • 1 cup half-and-half or heavy cream
  • 1/2 cup granulated sugar
  • 1 tablespoon vanilla extract
  • 2 teaspoons ground cinnamon
  • 1/4 teaspoon ground nutmeg
  • 1/4 teaspoon salt
  • 1/2 cup (1 stick) unsalted butter, melted (for topping)
  • 1/2 cup packed light brown sugar (for topping)
  • 1/2 cup all-purpose flour (for topping)
  • 1/2 cup chopped pecans or walnuts (optional, for topping)

Instructions

  1. 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, half-and-half, granulated sugar, vanilla extract, cinnamon, nutmeg, and salt until fully combined. This is your custard mixture.
  3. Pour the custard mixture slowly and 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 degrees Fahrenheit (175 degrees Celsius). Remove the plastic wrap.
  6. Prepare the crumble topping: In a small bowl, combine the melted butter, brown sugar, flour, and optional nuts. Mix with a fork until crumbly.
  7. Sprinkle the topping evenly over the soaked bread.
  8. Bake for 45 to 55 minutes, or until the casserole is set in the center, puffed, and golden brown on top. A knife inserted near the center should come out mostly clean.
  9. Let the French toast casserole cool for 10 minutes before slicing and serving. Serve warm with maple syrup.

Notes

  • Using day-old or slightly stale bread works best as it absorbs the custard better without becoming mushy.
  • For a richer flavor, substitute some of the milk with heavy cream.
  • You can assemble this up to 24 hours ahead of time.

Nutrition

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