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Baked French toast casserole in an oval pan. The casserole is topped with oat streusel topping.

Baked French Toast

Easy baked French toast topped with a crunchy oat and brown sugar topping.

Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings 8 servings

Ingredients

  • 2 cups whole milk
  • 6 large eggs, whisked
  • ½ cup lightly packed dark brown sugar (3 ½ ounces; 99 grams)
  • 1 teaspoon ground cinnamon
  • ¼ teaspoon salt
  • 1 loaf (14-16 ounces) soft French bread, cut or torn into chunks

Topping

  • 4 tablespoons butter, melted (4 ounces; 113 grams)
  • ⅓ cup flour (1 ⅓ ounces; 40 grams)
  • ⅓ cup oatmeal (1 ½ ounces; 35 grams)
  • ¼ cup brown sugar (1 ¾; 50 grams)
  • 1 teaspoon ground cinnamon

For Serving

  • maple syrup

Instructions

  1. Preheat oven to 350 degrees F. Grease a 9x13-inch pan with nonstick cooking spray or brush lightly with softened butter. 

  2. Whisk together the milk, eggs, brown sugar, cinnamon and salt.

  3. Place the bread cubes in a large bowl. Pour the brown sugar-egg mixture evenly over the bread. Stir gently to combine. Allow the bread to sit for five minutes to absorb the egg mixture. 

  4. While the bread soaks up the liquid, prepare the topping. Stir together the brown sugar, flour, oatmeal, and cinnamon in a small bowl. Add the melted butter. Stir until combined. The mixture should look crumbly.

  5. Place the bread evenly into the prepared pan. (If you're baking the next day, see below.)

    Sprinkle the topping evenly over the top. 

  6. Bake until set, about 45 minutes. Remove from the oven and allow to cool for five minutes. Serve with maple syrup, bacon, and fresh fruit. 

For Overnight French Toast

  1. Skip preheating the oven. Place the soaked bread cubes into the pan. Cover with plastic wrap. Store the prepared topping in a small zippered plastic bag. In the morning, preheat oven to 350 degrees F. Remove the plastic wrap from the French toast casserole. Sprinkle prepared topping evenly over the casserole. Bake as directed.