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Easy Overnight French Toast Casserole Recipe with Maple Brown Sugar Streusel

overnight french toast casserole - featured image

A cozy and indulgent French toast casserole soaked overnight in a vanilla-cinnamon custard and topped with a crispy maple brown sugar streusel. Perfect for hassle-free mornings and crowd-pleasing brunches.

Ingredients

Scale
  • 1 loaf thick-cut bread (day-old brioche, challah, or French bread)
  • 6 large eggs (room temperature)
  • 2 cups whole milk (or almond milk for dairy-free)
  • 1/2 cup heavy cream (can substitute with more milk)
  • 2/3 cup granulated sugar
  • 2 teaspoons vanilla extract
  • 1 teaspoon ground cinnamon
  • 1/4 teaspoon freshly grated nutmeg (optional)
  • 3/4 cup all-purpose flour
  • 1/2 cup brown sugar (light or dark)
  • 1/3 cup cold unsalted butter, cubed (salted optional)
  • 3 tablespoons pure maple syrup
  • 1/2 teaspoon ground cinnamon

Instructions

  1. Cut bread into roughly 1-inch cubes or thick slices. If fresh, toast lightly for 5 minutes. Place evenly in a 9×13-inch baking dish.
  2. In a large bowl, whisk together eggs, whole milk, heavy cream, granulated sugar, vanilla extract, ground cinnamon, and nutmeg until smooth and creamy.
  3. Pour custard mixture evenly over bread cubes, pressing gently to soak the bread. Cover tightly with aluminum foil.
  4. Refrigerate the covered casserole for at least 8 hours or overnight.
  5. In a medium bowl, combine flour, brown sugar, and ground cinnamon. Cut in cold butter until mixture resembles coarse crumbs. Stir in maple syrup until crumbly but combined.
  6. Preheat oven to 350°F (175°C). Remove casserole from fridge and foil.
  7. Sprinkle maple brown sugar streusel evenly over soaked bread. Bake uncovered for 45-50 minutes until topping is golden and custard is set.
  8. Let casserole cool for 5-10 minutes before serving.

Notes

Use day-old or lightly toasted bread to prevent sogginess. Let eggs and milk come to room temperature before mixing for best custard texture. Keep butter cold when making streusel for crumbly topping. Tent with foil if streusel browns too fast. Soak bread overnight for best results; minimum 4 hours if short on time.

Nutrition

Keywords: French toast casserole, overnight casserole, maple brown sugar streusel, easy breakfast, brunch recipe, make-ahead breakfast