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Blueberry French toast casserole baked golden with fresh blueberries and syrup drizzle

Easy Blueberry French Toast Casserole Recipe | Perfect Make-Ahead Breakfast

Sweet, fruity, and irresistibly comforting — this Perfect Unbelievable Blueberry French Toast Casserole layers fluffy bread cubes, juicy blueberries, and a rich custard, baked until golden and topped with a drizzle of syrup. A make-ahead breakfast or brunch dish that’s as easy as it is delicious.
Prep Time 20 minutes
Total Time 1 hour
Course Breakfast, Brunch
Cuisine American / Comfort Food, Holiday brunch
Servings 10
Calories 320 kcal

Equipment

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

Ingredients
  

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

Streusel topping:

  • ½ cup flour
  • ½ cup brown sugar
  • ¼ cup cold butter, cubed
  • Optional: lemon zest, cream cheese dollops, chopped nuts

Instructions
 

  • Prepare bread: Cube bread and layer evenly in a greased 9x13-inch baking dish.
  • Make custard: Whisk eggs, milk, cream, sugar, vanilla, and cinnamon until smooth.
  • Combine: Pour custard over bread cubes. Fold in blueberries gently.
  • Chill: Cover and refrigerate overnight for deeper flavor (optional).
  • Prepare streusel: Mix flour, brown sugar, and butter until crumbly. Sprinkle over casserole.
  • Bake: Preheat oven to 350°F (175°C). Bake uncovered for 45–55 minutes until golden and set.
  • Cool & serve: Rest 10 minutes. Serve warm with syrup, powdered sugar, or whipped cream.

Notes

  • Make-ahead: Assemble the night before; bake fresh in the morning.
  • Storage: Refrigerate leftovers up to 3 days.
  • Reheating: Oven at 325°F (160°C), covered with foil, until warmed through.
  • Freezing: Freeze baked casserole up to 2 months; thaw overnight and reheat.
  • Common mistakes: Using fresh bread (too soft), skipping overnight soak, overbaking, or adding too much fruit.
  • Variations: Lemon-blueberry, cream cheese swirl, nutty topping, or mixed berry versions.
  • Pairings: Serve with bacon, sausage, or a crisp salad for balance.
Keyword blueberry french toast casserole, brunch casserole, make-ahead holiday breakfast, overnight breakfast bake