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Quick Blueberry French Toast Casserole

A cozy, fast breakfast casserole filled with fresh blueberries and a delightful custard, perfect for brunch or dessert.
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Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes
Servings: 8 servings
Course: Breakfast, Brunch
Cuisine: American
Calories: 350
Ingredients Method Notes

Ingredients
  

Main Ingredients
  • 8 cups day-old brioche or challah, cubed Sturdy bread absorbs the custard without becoming mushy. Whole-grain bread is a healthy option.
  • 2 cups fresh or frozen blueberries Do not thaw if frozen; they stay plump in the bake.
  • 6 large eggs, room temperature They create that custardy center.
  • 2 cups milk or dairy-free milk Oat or almond work well for a dairy-free version.
  • 1/2 cup heavy cream or coconut cream Optional for richness.
  • 1/3 cup pure maple syrup Plus extra for serving; honey works too.
  • 2 teaspoons vanilla extract
  • 1 teaspoon ground cinnamon Aromatic and warm.
  • 1 pinch nutmeg Aromatic and warm.
  • 1/4 teaspoon salt To balance sweetness.
  • 3 tablespoons melted butter or coconut oil Plus extra for greasing the dish.
Optional Toppings
  • sliced almonds or streusel Add for texture.

Method
 

Preparation
  1. Preheat your oven to 350°F (175°C) and butter a 9x13-inch baking dish.
  2. Toss the cubed bread and blueberries in the prepared dish, distributing berries evenly.
  3. In a large bowl, whisk together eggs, milk, cream (if using), maple syrup, vanilla, cinnamon, nutmeg, salt, and melted butter until smooth and glossy.
  4. Pour the custard evenly over the bread and berries, pressing down gently with a spatula.
  5. Let it sit for 10 minutes if using very fresh bread; otherwise, proceed directly to baking.
  6. Bake uncovered for 35–40 minutes, or until golden brown and a knife inserted in the center comes out clean.
  7. Let it rest for 5–10 minutes before serving.

Notes

Serve warm with butter, maple syrup, and powdered sugar. Store leftovers in an airtight container for up to 4 days, or freeze baked slices for up to 2 months. Reheat individual slices in the microwave or oven.