Go Back
homemade Overnight Blueberry French Toast Casserole photo

Overnight Blueberry French Toast Casserole

A simple make-ahead blueberry French toast casserole that soaks overnight and bakes to a golden, custardy breakfast perfect for a crowd.
Prep Time10 minutes
Cook Time45 minutes
Total Time55 minutes
Servings: 12 servings

Ingredients

  • 1 loaf (14-16 oz) whole wheat French bread cut into 1-inch cubes
  • 2 cups liquid egg whites or 8 whole eggs
  • 2 cups unsweetened almond milk
  • 1/4 cup pure maple syrup
  • 1 Tbsp vanilla
  • 2 tsp cinnamon
  • 1/4 tsp nutmeg
  • 1 pinch salt
  • 1 cup blueberries fresh or frozen
  • optional toppings powdered sugar, maple syrup, extra blueberries

Instructions

  • If your bread is not day-old, preheat the oven to 350°F (175°C). Spread the cubed bread on a baking sheet and toast for about 10 minutes until slightly dry; this step is optional but helps prevent a soggy casserole.
  • Spray a 9x13 inch baking dish with nonstick spray and evenly arrange the toasted or day-old bread cubes in the dish.
  • Scatter the blueberries evenly over the bread cubes.
  • In a large bowl, whisk together the liquid egg whites (or 8 whole eggs), almond milk, maple syrup, vanilla, cinnamon, nutmeg, and a pinch of salt until well combined.
  • Pour the egg-and-milk mixture evenly over the bread and blueberries, pressing gently so the bread absorbs the liquid. Cover and refrigerate for at least 1 hour or overnight for best results.
  • When ready to bake, preheat the oven to 350°F (175°C). Remove the cover and bake the casserole for 45 to 50 minutes, until set and golden on top.
  • Let the casserole rest a few minutes, then top with powdered sugar, maple syrup, or extra blueberries if desired and serve.

Equipment

  • 9x13 inch Baking Dish
  • Baking Sheet
  • Mixing Bowl
  • Whisk
  • nonstick spray
  • Measuring cups and spoons

Notes

  • Use day-old bread for best texture.
  • To save time, toast the bread cubes before assembling.
  • Frozen blueberries can be used without thawing.
  • Cover and refrigerate for at least 1 hour or overnight.