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Blueberry French Toast Bake

Golden brown blueberry French toast bake with cinnamon streusel and maple syrup.

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This is a comforting, make-ahead breakfast casserole. Slightly stale bread soaks in a rich custard with blueberries and a buttery crumb topping. It’s perfect for a crowd or a special weekend treat.

Ingredients

Scale
  • 1 loaf (16 oz) sturdy bread like challah or brioche, slightly stale, cut into 1-inch cubes
  • 8 large eggs
  • 2 cups whole milk
  • 1 cup heavy cream
  • 3/4 cup granulated sugar
  • 2 teaspoons pure vanilla extract
  • 1 1/2 teaspoons ground cinnamon
  • 1/4 teaspoon ground nutmeg (optional)
  • 1/4 teaspoon salt
  • 2 cups fresh or frozen blueberries
  • For the topping:
  • 1/4 cup all-purpose flour
  • 1/4 cup packed brown sugar
  • 1/2 teaspoon cinnamon
  • 1/4 cup (1/2 stick) cold unsalted butter, cubed

Instructions

  1. Grease a 9×13 inch baking dish. Place the bread cubes in the dish and sprinkle blueberries over them.
  2. In a large bowl, whisk eggs until frothy. Add milk, cream, sugar, vanilla, cinnamon, nutmeg, and salt. Whisk until smooth.
  3. Pour the custard evenly over the bread and blueberries. Gently press down on the bread to help it soak.
  4. For the topping: In a small bowl, mix flour, brown sugar, and cinnamon. Cut in the cold butter until mixture resembles coarse crumbs. Sprinkle evenly over the casserole.
  5. Cover the dish and refrigerate for at least 2 hours, or ideally overnight.
  6. Preheat oven to 350°F (175°C). Let the dish sit at room temperature for 20-30 minutes if refrigerated.
  7. Bake for 50-60 minutes, until the top is golden brown and the center is set. Tent with foil if the top browns too quickly.
  8. Let the bake rest for 10-15 minutes before serving.

Notes

Using stale bread is key to prevent sogginess. The bake can be assembled the night before for easy morning prep. For a dairy-free version, use full-fat coconut milk. Reheat leftovers in the oven to restore the crispy topping.

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