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–+ servings

Ultimate Overnight Blueberry French Toast Casserole

Discover the ultimate make-ahead breakfast with this incredible Blueberry French Toast Casserole. Featuring luscious layers of cream cheese, juicy blueberries, and custard-soaked bread, this recipe transforms classic French toast into a simple, crowd-pleasing bake. Perfect for holiday mornings or a leisurely weekend brunch, this french toast casserole is guaranteed to become a family favorite.
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Course: Breakfast, Brunch, Dessert
Cuisine: American
Keyword: blueberry breakfast bake, Blueberry French Toast Casserole, cream cheese french toast, french toast casserole, make-ahead breakfast, overnight french toast casserole
Prep Time: 45 minutes
Cook Time: 1 hour 15 minutes
Refrigeration Time: 8 hours
Total Time: 10 hours
Servings: 8 servings
Calories: 477kcal

Ingredients 

Cream Cheese Filling

  • 8 oz cream cheese softened to room temperature
  • 1 cup powdered sugar
  • 2 tbsp milk whole milk recommended
  • 1 tsp vanilla extract
  • 1 cup blueberries fresh or frozen

Casserole Base & Custard

  • 2 loaves French bread day-old, cut into 1-inch cubes
  • 8 large eggs
  • 2 cups milk whole milk recommended
  • 2 tsp vanilla extract
  • 1 tsp ground cinnamon
  • 1/2 tsp ground nutmeg
  • 1 cup blueberries for topping

Instructions

  • Create the filling by combining the softened cream cheese, powdered sugar, 2 tablespoons of milk, and 1 teaspoon of vanilla extract in a medium bowl. Mix until smooth and creamy, then gently fold in 1 cup of blueberries.
  • Assemble the casserole by spreading half of the cubed French bread in a single layer in a buttered 10x14-inch baking dish. Carefully spread the blueberry cream cheese mixture over the bread, then top with the remaining bread cubes.
  • Prepare the custard by whisking together 2 cups of milk, 8 large eggs, 2 teaspoons of vanilla extract, ground cinnamon, and ground nutmeg in a large bowl. Pour the egg mixture evenly over the bread layers, making sure all pieces are saturated. Sprinkle the remaining 1 cup of blueberries on top.
  • Cover the baking dish tightly with aluminum foil and refrigerate for at least 8 hours, or overnight. This allows the bread to fully absorb the rich custard.
  • Remove the casserole from the refrigerator 30-60 minutes before baking to let it come to room temperature. Meanwhile, preheat your oven to 375°F (190°C).
  • Bake the casserole, still covered with foil, for 45 minutes. Then, remove the foil and continue to bake for another 30 minutes, or until the top is golden brown and the center is fully set.
  • Let the Blueberry French Toast Casserole cool for a few minutes before slicing and serving warm. Enjoy this delicious breakfast bake!

Equipment

  • 10x14-inch baking dish
  • Large Mixing Bowl
  • Medium mixing bowl

Notes

For the best texture, use day-old or slightly stale bread like French, brioche, or challah, as it absorbs the custard better. If your bread is fresh, you can cube it and let it dry out on the counter for a few hours. Frozen blueberries work just as well as fresh; no need to thaw them first. You can also prepare and bake this casserole the same day by letting it soak for at least 30 minutes before it goes into the oven.

Nutrition

Calories: 477kcal | Carbohydrates: 55g | Protein: 16g | Fat: 22g | Saturated Fat: 11g | Cholesterol: 210mg | Sodium: 450mg | Potassium: 280mg | Fiber: 3g | Sugar: 28g | Vitamin A: 850IU | Vitamin C: 6mg | Calcium: 180mg | Iron: 3mg