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A delicious Blueberry French Toast Casserole is shown as a featured image, ready to be served for breakfast or brunch.

Irresistible Blueberry French Toast Casserole

This blueberry French toast casserole transforms humble ingredients into an extraordinary breakfast or brunch. The key is to dry the bread, use a rich custard, and layer the blueberries for a delightful burst of flavor in every bite. Chilling overnight allows the bread to fully absorb the custard, resulting in a perfectly set, creamy, and irresistible casserole.
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Prep Time 25 minutes
Cook Time 55 minutes
Total Time 1 hour 20 minutes
Servings: 8
Course: Breakfast, Brunch
Cuisine: American
Calories: 450
Ingredients Equipment Method Notes

Ingredients
  

  • 8 large eggs
  • 2 cups milk whole milk or half-and-half
  • 1/2 cup heavy cream
  • 1/4 cup granulated sugar
  • 2 tablespoons vanilla extract
  • 1 teaspoon ground cinnamon
  • 1/4 teaspoon ground nutmeg
  • Pinch of salt
  • 2 cups fresh blueberries
  • 1/2 cup all-purpose flour
  • 1/4 cup packed brown sugar
  • 1/4 cup cold unsalted butter, cut into small pieces

Equipment

  • 9x13 inch baking dish
  • Baking sheet
  • Large bowl
  • Medium bowl
  • Whisk
  • Pastry blender or fingertips
  • Measuring cups
  • Measuring spoons
  • Oven

Method
 

  1. Prepare the Bread: Spread the bread cubes in a single layer on a baking sheet. Bake in a preheated oven at 300°F (150°C) for 10-15 minutes, or until lightly dried out.
  2. Make the Custard: In a large bowl, whisk together the eggs, milk, heavy cream, granulated sugar, vanilla extract, cinnamon, nutmeg, and salt until well combined.
  3. Assemble the Casserole: Grease a 9x13 inch baking dish. Spread half of the dried bread cubes evenly in the dish. Sprinkle 1 cup of blueberries over the bread. Top with the remaining bread cubes and the remaining 1 cup of blueberries.
  4. Pour the Custard: Pour the custard mixture evenly over the bread cubes, making sure to saturate all of the bread. Gently press down on the bread to ensure it is submerged in the custard.
  5. Make the Streusel Topping: In a medium bowl, combine the all-purpose flour and brown sugar. Cut in the cold butter using a pastry blender or your fingertips until the mixture resembles coarse crumbs.
  6. Add the Topping: Sprinkle the streusel topping evenly over the casserole.
  7. Chill (Optional): For best results, cover the casserole and refrigerate for at least 2 hours, or preferably overnight.
  8. Bake: Preheat the oven to 350°F (175°C). Bake the casserole, uncovered, for 45-55 minutes, or until golden brown and the custard is set. A knife inserted into the center should come out clean.
  9. Cool and Serve: Let the casserole cool for 10-15 minutes before serving. Serve warm, plain, or with a drizzle of maple syrup.

Notes

For best results, chill the casserole overnight to allow the bread to fully absorb the custard. Use challah, brioche, or French bread. Maple syrup pairs perfectly with this casserole. The casserole can be stored in the refrigerator for up to 3 days.