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Easy Overnight Blueberry French Toast Casserole

A close-up of a moist slice of Blueberry French Toast Casserole topped with fresh blueberries and powdered sugar, sitting in syrup.
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Prepare this simple, make-ahead Blueberry French Toast Casserole the night before for a stress-free, warm breakfast or brunch. It bakes up fluffy and is packed with sweet blueberries.

Ingredients

Scale
  • 1 (13-16 ounce) loaf French bread or Challah, cut into 1-inch cubes
  • 2 cups fresh or frozen blueberries
  • 1 cup cream cheese, softened (optional, for swirl)
  • 6 large eggs
  • 2 cups milk (whole or 2%)
  • 1/2 cup granulated sugar
  • 1 teaspoon vanilla extract
  • 1 teaspoon ground cinnamon
  • 1/4 teaspoon ground nutmeg
  • 1/4 teaspoon salt
  • 1/4 cup maple syrup (for topping)
  • Powdered sugar (for dusting)

Instructions

  1. Grease a 9×13 inch baking dish. Arrange half of the bread cubes evenly in the bottom of the dish.
  2. If using cream cheese, beat it until smooth. Drop small spoonfuls of cream cheese over the bread layer. Top with the remaining bread cubes.
  3. Scatter the blueberries evenly over the bread layers.
  4. In a large bowl, whisk together the eggs, milk, sugar, vanilla extract, cinnamon, nutmeg, and salt until well combined. This creates the custard.
  5. Slowly pour the custard mixture evenly over the bread and blueberries in the baking dish. Gently press down on the bread to help it absorb the liquid.
  6. Cover the dish tightly with plastic wrap. Refrigerate for at least 4 hours, or preferably overnight.
  7. When ready to bake, preheat your oven to 350°F (175°C). Remove the plastic wrap.
  8. Bake for 45 to 55 minutes, or until the casserole is puffed, golden brown, and the center is set (no liquid remains when poked).
  9. Let the casserole rest for 10 minutes before serving. Drizzle with maple syrup and dust with powdered sugar.

Notes

  • For a lemon variation, add 1 tablespoon of fresh lemon zest to the custard mixture.
  • Challah or brioche bread works best for a fluffy texture.
  • This recipe is great for feeding a crowd at holiday morning gatherings.
  • If you need to bake it sooner, let the assembled casserole sit at room temperature for 30 minutes before baking.

Nutrition

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