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Blueberry French Toast Casserole

A cozy morning meal featuring buttery brioche bread soaked in rich custard and layered with juicy blueberries, perfect for brunch or special occasions.
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Prep Time 20 minutes
Cook Time 55 minutes
Total Time 1 hour 15 minutes
Servings: 12 servings
Course: Breakfast, Brunch
Cuisine: American
Calories: 380
Ingredients Method Notes

Ingredients
  

Main Ingredients
  • 16 ounces brioche bread The foundation of this dish, providing a soft and buttery texture.
  • 2 cups fresh or frozen blueberries Bursting with sweetness, these juicy gems add a delightful pop of flavor.
  • 1 tablespoon lemon zest Brightens up the flavors, creating a delightful contrast to the rich custard.
  • ⅔ cup light brown sugar For a hint of caramel-like sweetness that elevates the flavor profile.
  • 8 large eggs The binding agent that creates the luscious custard.
  • 1 cup whole milk The creamy base for the custard.
  • 4 tablespoons unsalted butter (melted and cooled) Adds richness and depth to the dish.
  • 1 tablespoon pure vanilla extract Infuses each bite with warm and inviting vanilla notes.
  • 1 pinch salt Enhances the flavors, balancing the sweetness.

Method
 

Preparation
  1. Begin by spraying a 9x13-inch baking pan with nonstick cooking spray.
  2. Slice the brioche bread into 1-inch cubes.
  3. Spread half of the bread cubes evenly in the bottom of the prepared baking dish. Sprinkle half of the blueberries on top. Layer with the remaining bread cubes and finish with the rest of the blueberries.
  4. In a large mixing bowl, combine the lemon zest and brown sugar. Rub the lemon zest into the sugar until it’s well mixed and fragrant.
  5. Add in the eggs, whole milk, melted butter, vanilla extract, and salt. Whisk everything together until fully combined.
  6. Pour the custard mixture over the layered bread and blueberries. Cover with foil and refrigerate for a minimum of 4 hours or overnight.
Baking
  1. Preheat your oven to 350°F (175°C). Remove the pan from the refrigerator.
  2. Cover the dish with foil and bake for 45 minutes. Remove the foil and continue baking for an additional 10-15 minutes, or until puffed and cooked through.
  3. Serve warm with maple syrup or powdered sugar.

Notes

For healthier alternatives, consider using low-calorie sweetener or coconut sugar, dairy-free milk, and whole grain bread. Leftovers can be frozen or reheated easily.