Easy Brioche French Toast Casserole Recipe

This easy, baked brioche French toast casserole recipe is so simple and delicious! It’s perfect for a big brunch or a make-ahead breakfast.

  • Prep Time:
    10 minutes
  • Total Time:
    35 minutes
  • Makes:
    12 slices 1x
  • Prep Time:
    10 minutes
  • Total Time:
    35 minutes
  • Makes:
    12 slices 1x
  • Ingredients

    • 24 ounces brioche bread
    • 8 large eggs
    • 2 cups milk
    • 5 tablespoons packed brown sugar, divided
    • 1 ½ teaspoons ground cinnamon
    • ¾ teaspoon kosher salt
    • 1 teaspoon pure vanilla extract
    • Optional toppings: Toasted walnuts or pecans, powdered sugar, maple syrup


    1. Preheat oven and prepare baking dish. Preheat your oven to 350°F (175°C) and lightly grease a 9×13 baking dish with butter or cooking spray.
    2. Slice the bread. Slice the brioche into 1-inch cubes and transfer the cubed bread to a large mixing bowl. 
    3. Make the custard. In a small mixing bowl, combine the eggs, milk, 3 tablespoons of brown sugar, cinnamon, and salt, and whisk until well combined.
    4. Combine the brioche and custard. Slowly pour half of the egg mixture (custard) over the brioche. With clean hands, gently fold the brioche over once or twice to coat. Add the remaining custard and fold everything once more with your hands just until the custard has been absorbed and the brioche is well coated.
    5. Bake and serve. Gently transfer the brioche to your prepared baking dish and spread it out into an even layer. Sprinkle the remaining brown sugar on top of the casserole and bake until golden brown and the custard has set, about 25-30 minutes. Remove from the oven, top with desired toppings, and serve immediately.


    Nutrition information was calculated using 20 ounces of French brioche bread (Trader Joe’s) and whole milk; does not include toppings or maple syrup.


    • Serving Size: 1 slice
    • Calories: 327
    • Sugar: 16 g
    • Sodium: 478 mg
    • Fat: 13 g
    • Saturated Fat: 6 g
    • Unsaturated Fat: 7 g
    • Trans Fat: 0 g
    • Carbohydrates: 41 g
    • Fiber: 1 g
    • Protein: 10 g
    • Cholesterol: 179 mg

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