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A golden-baked blueberry French toast casserole topped with fresh blueberries, powdered sugar, and drizzled with syrup, served in a baking dish.

Unbelievable Blueberry French Toast Casserole – Easy Breakfast Recipe

Sweet, fruity, and indulgent—this blueberry French toast casserole is a breakfast dream come true. With layers of bread, custard, and juicy blueberries baked to golden perfection, it’s the ultimate dish for brunch, holidays, or cozy weekend mornings.
Prep Time 20 minutes
Cook Time 25 minutes
Total Time 9 hours
Course Breakfast, Brunch, Dessert
Cuisine American, Comfort Food
Servings 10
Calories 320 kcal

Equipment

  • 9x13-inch baking dish
  • Mixing bowls
  • Whisk
  • Measuring cups & spoons
  • Spatula

Ingredients
  

  • 1 loaf day-old brioche, challah, or French bread
  • 6 large eggs
  • 2 cups milk or cream
  • ½ cup granulated sugar
  • 2 tsp vanilla extract
  • 2 cups fresh or frozen blueberries

Streusel Topping:

  • ½ cup flour
  • ½ cup brown sugar
  • ¼ cup butter, softened
  • Optional: lemon zest, maple syrup, powdered sugar glaze

Instructions
 

  • Prepare Dish: Grease baking dish generously.
  • Layer Bread: Cube bread and arrange evenly.
  • Add Blueberries: Scatter throughout layers.
  • Mix Custard: Whisk eggs, milk, sugar, and vanilla until smooth.
  • Pour Custard: Evenly soak bread, pressing lightly.
  • Chill: Cover and refrigerate overnight.
  • Add Topping: Sprinkle streusel just before baking.
  • Bake: 350°F (175°C) for 40–45 minutes, until golden and set.
  • Rest & Serve: Cool 10 minutes before serving.

Notes

  • Use slightly stale bread for best texture.
  • Overnight chilling ensures custard absorption.
  • Cover with foil when reheating to prevent drying.
  • Customize with lemon zest, cream cheese, or mixed berries.
  • Serve warm with maple syrup and fresh fruit for a complete brunch spread.
Keyword blueberry french toast casserole, brunch recipes, Make-Ahead French Toast, overnight breakfast bake