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brioche french toast casserole on plate

Overnight Brioche French Toast Casserole

Samantha Erb
Brioche french toast casserole is soaked overnight with cream, cinnamon, and vanilla, then baked to golden, decadent perfection.
4.50 from 54 votes
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Prep Time 10 minutes
Cook Time 1 hour 30 minutes
Chilling Time 8 hours
Total Time 9 hours 40 minutes
Course Breakfast Ideas
Cuisine American
Servings 6 - 8 servings
Calories 585 kcal

Equipment

  • 3 qt casserole dish

Ingredients

  • 14 ounces Brioche bread day-old
  • 6 large eggs
  • 1 ½ cups heavy cream
  • ½ cup milk
  • ½ cup granulated sugar
  • 1 tablespoon vanilla extract
  • ½ teaspoon ground cinnamon
  • Pinch ground nutmeg
  • Pinch kosher salt
  • powdered sugar for dusting on top
  • SERVE WITH butter syrup, whipped cream, fresh fruit

Instructions
 

  • Spray a 3-quart baking dish with non-stick spray (or grease with butter) and set it aside. 
  • Cut the bread into cubes, and evenly distribute them in the pan. 
  • In a large mixing bowl, whisk together the eggs, heavy cream, milk, granulated sugar, vanilla, cinnamon, nutmeg, and salt. 
  • Pour the mixture evenly over the bread, pressing down to ensure every piece is soaked.
  • Cover the pan tightly with plastic wrap and chill in the refrigerator for 8 hours, or overnight for best flavor.
  • When ready to bake, preheat the oven to 350 degrees F. Remove the casserole from the refrigerator and take off the plastic wrap. 
  • Bake it for 45-60 minutes, until golden brown and baked through. Serve with syrup and fresh fruit, if desired.

Notes

  • Use day-old brioche as fresh bread can turn out a little mushy, but day-old bread is perfect for absorbing the egg mixture without falling apart.
  • Store leftovers in the refrigerator in an airtight container for up to 3 days.

Nutrition

Serving: 1Calories: 585kcalCarbohydrates: 66gProtein: 15gFat: 29gSaturated Fat: 16gPolyunsaturated Fat: 11gTrans Fat: 1gCholesterol: 256mgSodium: 470mgFiber: 2gSugar: 35g

This nutrition information is based on the exact products I used in this recipe. Brands and sizes of products could alter exact nutrition and should always be calculated independently.

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