There’s nothing more comforting than waking up to a warm, golden-brown French toast casserole. This Easy Brioche French Toast Casserole is perfect for busy mornings, holiday brunches, or cozy weekends at home. With soft, buttery brioche cubes baked in a rich custard, topped with a hint of cinnamon and brown sugar, it’s indulgence you can prepare ahead of time.

Whether you’re serving family, friends, or treating yourself, this dish is simple yet elegant. It combines the classic flavors of French toast with the convenience of a casserole, making it a crowd-pleaser that’s sure to impress.

Ingredients

Brioche Bread: 1 loaf, cut into 1-inch cubes (preferably day-old)
Eggs: 8 large
Whole Milk: 2 cups
Heavy Cream: 1 cup
Vanilla Extract: 2 tsp
Ground Cinnamon: 1 tsp
Brown Sugar: ½ cup, packed
Salt: ¼ tsp
Maple Syrup or Powdered Sugar: for serving
Optional Toppings: Fresh berries, chopped nuts, whipped cream

Instructions

Preheat Oven: Preheat oven to 350°F (175°C). Grease a 9×13-inch baking dish with butter or nonstick spray.
Prepare Brioche: Place brioche cubes in the prepared dish evenly.
Mix Custard: In a large bowl, whisk together eggs, milk, heavy cream, vanilla extract, cinnamon, brown sugar, and salt until fully combined.
Pour Custard: Pour the custard evenly over the brioche cubes. Press gently so cubes absorb custard.
Soak: Cover casserole and refrigerate for at least 2 hours or overnight for best results.
Bake: Remove from fridge, uncover, and bake for 45–50 minutes or until the top is golden and the center is set.
Serve: Let the casserole cool for 5–10 minutes. Serve warm with maple syrup, powdered sugar, or your favorite toppings.

Tips for Perfect Brioche French Toast Casserole

Day-Old Bread: Use slightly stale brioche for better texture. Fresh bread can get too soggy.
Soaking Time: Overnight soaking enhances flavor and ensures custard seeps into every cube.
Topping Ideas: Add pecans or walnuts for crunch, or a drizzle of caramel sauce for extra indulgence.
Make Ahead: Prepare the casserole the night before, cover, and refrigerate. Pop it in the oven in the morning.

Variations

Chocolate Lovers: Add mini chocolate chips between the brioche layers.
Fruity Delight: Layer sliced strawberries, blueberries, or bananas between the cubes.
Caramel Apple: Fold in diced apples with cinnamon before pouring the custard.
Vegan Twist: Use plant-based milk and flax eggs for a vegan version.

Serving Suggestions

Pair this casserole with a cup of freshly brewed coffee, a glass of orange juice, or sparkling mimosas for brunch. It also works wonderfully as a sweet treat for holiday gatherings, birthdays, or weekend family breakfasts.

Fun Facts

French toast, or pain perdu, has been around since the Middle Ages. Originally, it was a way to use stale bread by soaking it in milk and eggs. Brioche French toast casseroles elevate this humble dish into a luxurious breakfast or brunch favorite, especially during holidays.