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Overnight Blueberry French Toast Casserole

Close-up of a moist slice of overnight blueberry french toast casserole with a cinnamon streusel topping.
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Prepare this make ahead French toast casserole the night before for an easy, comforting baked blueberry breakfast the next morning.

Ingredients

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  • 1 loaf (16 ounces) thick-cut French or Challah bread, cut into 1-inch cubes
  • 4 cups fresh or frozen blueberries
  • 6 large eggs
  • 2 cups whole milk
  • 1/2 cup granulated sugar
  • 1 teaspoon vanilla extract
  • 1 teaspoon ground cinnamon
  • 1/4 teaspoon ground nutmeg
  • 1/4 teaspoon salt
  • 1/2 cup brown sugar, packed (for topping)
  • 1/4 cup all-purpose flour (for topping)
  • 1/4 cup cold unsalted butter, cut into small pieces (for topping)

Instructions

  1. Arrange the bread cubes in a greased 9×13 inch baking dish. Sprinkle the blueberries evenly over the bread.
  2. In a large bowl, whisk together the eggs, milk, granulated sugar, vanilla extract, cinnamon, nutmeg, and salt until well combined.
  3. Pour the egg mixture slowly and evenly over the bread and blueberries, making sure all the bread soaks up the liquid. Gently press down on the bread to help it absorb the custard.
  4. Cover the dish tightly with plastic wrap. Refrigerate for at least 8 hours, or overnight.
  5. When ready to bake, preheat your oven to 350 degrees Fahrenheit. Remove the plastic wrap.
  6. Prepare the topping: In a small bowl, combine the brown sugar and flour. Cut in the cold butter using your fingers or a pastry blender until the mixture resembles coarse crumbs. Sprinkle this topping evenly over the casserole.
  7. Bake uncovered for 45 to 55 minutes, or until the casserole is puffed, golden brown, and the center is set. If the topping browns too quickly, loosely cover it with foil for the last 10 minutes.
  8. Let the casserole rest for 10 minutes before serving. Serve warm.

Notes

  • To prevent sogginess, use slightly stale bread. If your bread is very fresh, let the cubes sit out for an hour before assembling.
  • For a richer flavor, substitute half the milk with heavy cream.
  • This recipe works well as an easy weekend breakfast recipe or for serving guests.
  • If you prefer a crispier top, you can skip the crumb topping and just sprinkle the top with a little extra granulated sugar before baking.

Nutrition

Find it online: https://cookingbycarla.com/overnight-blueberry-french-toast-casserole/