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–+ servings
A delicious slice of Best Blueberry French Toast Casserole topped with fresh blueberries and powdered sugar.

Best Blueberry French Toast Casserole

This blueberry French toast casserole is a comforting and sweet breakfast dish perfect for busy families and brunch lovers. It's easy to prepare ahead of time, making it a hassle-free option for any morning.
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Prep Time 20 minutes
Cook Time 50 minutes
Refrigeration Time 12 hours
Total Time 13 hours 10 minutes
Servings: 8 servings
Course: Breakfast, Brunch
Cuisine: American
Ingredients Equipment Method Notes

Ingredients
  

For the Casserole
  • 1 loaf French bread, sourdough bread, brioche, or challah 12–14-ounce
  • 1 cup blueberries fresh or frozen
  • 2 cups whole milk
  • 8 large eggs
  • 1/2 cup heavy cream
  • 1/2 cup packed light brown sugar
  • 2 teaspoons pure vanilla extract
  • 2 teaspoons ground cinnamon
  • 1 teaspoon fresh lemon zest
  • pinch salt
Streusel Topping
  • 1/3 cup packed light or dark brown sugar
  • 1/3 cup all-purpose flour spooned & leveled
  • 1/2 teaspoon ground cinnamon
  • 6 Tablespoons unsalted butter cold and cubed
Optional Toppings
  • extra blueberries
  • extra maple syrup
  • extra confectioners’ sugar

Equipment

  • 9X13-inch baking pan
  • Pastry blender or two forks
  • Medium bowl

Method
 

  1. Grease a 9x13-inch pan. Cut the bread into 1-inch cubes. Spread the cubes in the prepared pan and top evenly with blueberries. Set aside.
  2. Whisk together the milk, eggs, cinnamon, brown sugar, and vanilla until no brown sugar lumps remain. Pour this mixture over the bread and blueberries. Cover the pan tightly and refrigerate for at least 3 hours, or preferably overnight.
  3. Preheat your oven to 350°F (177°C). Remove the pan from the refrigerator.
  4. To prepare the topping, whisk together the brown sugar, flour, and cinnamon in a medium bowl. Cut in the cold, cubed butter using a pastry blender or two forks until the mixture resembles coarse crumbs. Sprinkle this topping evenly over the soaked bread.
  5. Bake for 45–55 minutes, or until the top is golden-brown. For a softer casserole, bake for 45 minutes.
  6. Serve warm. Store any leftovers tightly covered in the refrigerator for 2–3 days.

Notes

You can use any sturdy bread like French bread, sourdough, brioche, or challah for this recipe. For a softer texture, reduce the baking time slightly.

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