Go Back
+ servings
Sarah

Overnight Blueberry French Toast Casserole

A bakery-style 9×13 blueberry french toast bake you assemble the night before. Custardy brioche, juicy blueberries, and a lemon–vanilla glaze—perfect for holiday mornings and party brunches.
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 50 minutes
Total Time 1 hour
Servings: 12 servings
Course: Breakfast, Brunch
Cuisine: American
Calories: 360

Ingredients

  • 1 lb brioche or challah, cut in 1–1½ inch cubes (about 10–12 cups)
  • 2 cups blueberries (fresh or frozen; see note)
  • 8 large eggs
  • 2 cups half-and-half (or 1½ cups milk + 1/2 cup cream)
  • 0.33 cup granulated sugar (use 1/4 cup for less sweet)
  • 2 tsp vanilla extract
  • 1–2 tsp lemon zest (plus 1 tsp lemon juice optional)
  • 1 tsp ground cinnamon
  • 0.25 tsp kosher salt
  • 4 oz cream cheese, cut in 1/2-inch cubes (optional, for pockets)
  • 1 tbsp butter, for greasing pan
  • 0.75 cup powdered sugar (icing)
  • 1–2 tbsp milk (icing)
  • 1 tsp lemon juice (optional, icing)
  • 0.25 tsp vanilla (icing)

Equipment

  • 9×13-inch baking dish
  • large mixing bowl
  • whisk
  • foil (for tenting)

Method

  • Butter a 9×13-inch baking dish. Arrange half the bread cubes, half the blueberries, and half the cream cheese cubes (if using). Repeat layers.
  • In a large bowl, whisk eggs, half-and-half, sugar, vanilla, lemon zest (and juice if using), cinnamon, and salt until smooth.
  • Pour custard evenly over bread. Press down gently to soak. Cover tightly and refrigerate 8–24 hours.
  • Heat oven to 350°F (175°C). Uncover and bake 45–55 minutes until puffed, deep golden, and the center registers 165°F. Tent with foil if needed.
  • Rest 10 minutes. Whisk icing ingredients smooth and drizzle over the top. Serve with maple syrup and extra berries.

Nutrition

Calories: 360kcalCarbohydrates: 45gProtein: 10gFat: 15gSaturated Fat: 7gPolyunsaturated Fat: 3gMonounsaturated Fat: 5gTrans Fat: 0.3gCholesterol: 150mgSodium: 300mgPotassium: 220mgFiber: 2gSugar: 23gVitamin A: 500IUVitamin C: 3mgCalcium: 170mgIron: 2mg

Notes

Frozen berries: Use straight from freezer; toss in 1 tsp flour to reduce color bleed.
Streusel option: Mix 1/4 cup melted butter + 1/2 cup flour + 1/2 cup brown sugar + pinch salt; crumble over the top before baking.
Storage: Refrigerate leftovers 3–4 days. Reheat covered at 325°F to heat through.
Gluten-free: Use sturdy GF bread.
Dairy-light: Swap half of the half-and-half for 2% milk; skip cream cheese.
Equipment: 9×13 baking dish, large mixing bowl, foil.
Tried this recipe?Mention @WPRecipeMaker or tag #wprecipemaker!