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Easy Overnight Blueberry French Toast Bake

overnight blueberry french toast bake - featured image

A simple and cozy brunch recipe featuring day-old bread soaked overnight in a vanilla-cinnamon custard with fresh or frozen blueberries, baked to golden perfection.

Ingredients

Scale
  • 10 cups day-old bread, cubed (challah or brioche recommended)
  • 2 cups fresh or frozen blueberries
  • 6 large eggs, room temperature
  • 2 cups whole milk (480 ml)
  • 1/2 cup heavy cream (120 ml)
  • 1/2 cup granulated sugar (100 g)
  • 1 1/2 teaspoons vanilla extract
  • 1/2 teaspoon ground cinnamon
  • 1/4 teaspoon salt
  • 2 tablespoons unsalted butter, melted (for greasing and drizzling)
  • Powdered sugar (optional, for dusting)

Instructions

  1. Cut about 10 cups of day-old bread into roughly 1-inch cubes and toss gently into a greased 9×13-inch baking dish.
  2. Sprinkle 2 cups of fresh or frozen blueberries evenly over the bread cubes without mixing.
  3. In a large bowl, whisk together 6 large eggs, 2 cups whole milk, 1/2 cup heavy cream, 1/2 cup granulated sugar, 1 1/2 teaspoons vanilla extract, 1/2 teaspoon ground cinnamon, and 1/4 teaspoon salt until smooth and slightly frothy.
  4. Pour the custard evenly over the bread and blueberries. Gently press down the bread cubes and carefully fold in the blueberries to distribute evenly without breaking them.
  5. Cover the dish tightly with plastic wrap or aluminum foil and refrigerate for at least 6 hours or up to 24 hours.
  6. Preheat oven to 350°F (175°C). Remove cover and drizzle 2 tablespoons melted unsalted butter over the top.
  7. Bake uncovered for 45-55 minutes until the top is golden brown and custard is set (a knife inserted should come out clean). Tent with foil if edges brown too quickly.
  8. Let cool for 5-10 minutes before serving. Dust with powdered sugar and optionally add maple syrup or whipped cream.

Notes

Use day-old bread to avoid sogginess. Fold blueberries gently to prevent color bleeding. Grease the baking dish well to prevent sticking. Refrigerate overnight for best custardy texture. Check doneness starting at 45 minutes to avoid overbaking. For a crispier top, broil for last 5 minutes watching carefully. Variations include vegan substitutions, gluten-free bread, and seasonal fruit swaps.

Nutrition

Keywords: blueberry, french toast bake, overnight, brunch, easy, custard, breakfast casserole