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Best-Ever Blueberry French Toast Casserole Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.4 from 47 reviews
  • Author: admin
  • Prep Time: 20 minutes
  • Cook Time: 50 minutes
  • Total Time: 8 hours 70 minutes (includes overnight chilling)
  • Yield: 12 servings
  • Category: Breakfast Casserole
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

This French Toast Casserole is a delightful make-ahead breakfast dish perfect for feeding a crowd. Cubed bread is soaked overnight in a rich custard made from eggs, milk, cream, and aromatic spices, then topped with a buttery cinnamon-brown sugar crumble. Baked until golden and bubbly, it’s served warm with syrup and fresh blueberries for a comforting and indulgent morning treat.


Ingredients

Scale

Base

  • 10 cups cubed bread (500 grams or 1 loaf)
  • 6 large eggs (300 grams)
  • 2 cups milk (454 grams)
  • 1 cup heavy cream (227 grams)
  • ½ cup brown sugar (107 grams)
  • ¼ cup pancake syrup (78 grams)
  • 1 tablespoon pure vanilla extract (12 grams)
  • 1 teaspoon ground cinnamon (3 grams)
  • Fresh blueberries (for topping, optional)

Crumble Topping

  • ½ cup unsalted butter, melted (113 grams or 1 stick)
  • ½ cup all-purpose flour (70 grams)
  • ½ cup brown sugar (107 grams)
  • 1 teaspoon ground cinnamon (3 grams)
  • â…› teaspoon kosher salt


Instructions

  1. Prepare baking pan: Spray a 9×13-inch baking pan thoroughly with nonstick spray to prevent sticking during baking.
  2. Add bread cubes: Place all the cubed bread evenly into the prepared baking pan, creating a base layer for the custard.
  3. Mix custard: In a large bowl, whisk eggs until smooth. Add milk, heavy cream, brown sugar, pancake syrup, vanilla extract, and cinnamon. Whisk thoroughly until all ingredients are well combined.
  4. Soak bread with custard: Stir the custard mixture again quickly to redistribute cinnamon that may have settled, then pour it evenly over the bread cubes. Use a spatula to gently press the bread down so it absorbs the liquid. Optionally, top with fresh blueberries or stir them into the mixture.
  5. Refrigerate overnight: Cover the casserole dish tightly with plastic wrap and refrigerate for at least 8 hours or overnight to allow the bread to soak up all the custard fully.
  6. Preheat oven: Remove the casserole from the fridge and preheat your oven to 350°F (175°C).
  7. Make crumble topping: In a small bowl, combine melted butter, flour, brown sugar, cinnamon, and salt. Mix with a fork until crumbly, then sprinkle evenly over the soaked French toast mixture.
  8. Bake covered: Cover the casserole with aluminum foil and bake in the preheated oven for 20 minutes to set the custard.
  9. Bake uncovered: Remove the foil and continue baking for an additional 30 minutes until the top is golden brown and the center is cooked through without wet spots.
  10. Serve: Remove from oven and serve warm, drizzled with additional pancake syrup and topped with more fresh blueberries if desired for an extra burst of flavor.

Notes

  • Use sturdy bread like brioche or challah for best texture that soaks custard well without becoming mushy.
  • Letting the bread soak overnight is essential for the custard to fully penetrate and tenderize the bread.
  • The crumble topping adds a sweet, crunchy contrast and can be customized with nuts or oats.
  • Blueberries are optional but add a fresh, fruity brightness.
  • If you prefer a dairy-free version, substitute milk and cream with your favorite non-dairy alternatives.