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Overnight Baked French Toast Casserole with Cinnamon Streusel Topping

Close-up of a square slice of baked french toast with a thick, cinnamon streusel topping on a white plate.
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Make your weekend mornings easy with this overnight baked French toast casserole. Prep it the night before, and wake up to a fluffy, custard-soaked breakfast perfect for feeding a crowd or enjoying a special holiday morning meal.

Ingredients

Scale
  • 1 loaf (about 1 pound) thick-cut bread (brioche or challah recommended)
  • 12 large eggs
  • 2 cups whole milk
  • 1 cup half-and-half or heavy cream
  • 1/2 cup granulated sugar
  • 2 teaspoons vanilla extract
  • 2 teaspoons ground cinnamon
  • 1/4 teaspoon ground nutmeg
  • 1/4 teaspoon salt
  • 1/2 cup butter, melted (for topping)
  • 1/2 cup packed brown sugar (for topping)
  • 1 cup all-purpose flour (for topping)
  • 1 teaspoon ground cinnamon (for topping)

Instructions

  1. Cut the bread into 1-inch cubes. Arrange the bread cubes in a greased 9×13 inch baking dish.
  2. In a large bowl, whisk together the eggs, milk, half-and-half, granulated sugar, vanilla extract, 2 teaspoons cinnamon, nutmeg, and salt until fully combined. This creates your rich custard base.
  3. Pour the custard mixture evenly over the bread cubes in the baking dish. Gently press the bread down to help it absorb the liquid.
  4. Cover the dish tightly with plastic wrap. Refrigerate for at least 4 hours, or preferably overnight. This step is key for a fluffy baked French toast.
  5. When ready to bake, preheat your oven to 350 degrees F. Remove the plastic wrap.
  6. Prepare the cinnamon streusel topping: In a medium bowl, combine the melted butter, brown sugar, flour, and 1 teaspoon cinnamon. Use your fingers or a fork to mix until coarse crumbs form.
  7. Sprinkle the streusel topping evenly over the soaked bread.
  8. Bake for 45 to 55 minutes, or until the casserole is set in the center and the topping is golden brown.
  9. Let the baked French toast casserole rest for 10 minutes before slicing and serving. Serve warm with maple syrup.

Notes

  • For best results and maximum fluffiness, use slightly stale or day-old bread.
  • If you are short on time, you can skip the overnight refrigeration, but let the bread soak for at least 30 minutes before baking.
  • This recipe is a crowd-pleasing breakfast that works well for family style breakfast gatherings.

Nutrition

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