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Overnight Brioche French Toast Casserole

Overnight Brioche French Toast Casserole for Cozy Mornings

This Overnight Brioche French Toast Casserole offers a rich, creamy breakfast delight, perfect for cozy mornings with family and friends.
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Prep Time 15 minutes
Cook Time 1 hour
Refrigeration Time 12 hours
Total Time 13 hours 15 minutes
Course Breakfast
Cuisine American
Servings 8 slices
Calories 350 kcal

Equipment

  • 13x9 glass pan
  • medium-sized bowl
  • Whisk
  • - Plastic wrap

Ingredients
  

For the Casserole

  • 1 loaf Brioche bread 20 oz, cut in 1 inch squares
  • ⅔ cup Light brown sugar packed
  • ¾ teaspoon Ground cinnamon
  • ¼ teaspoon Ground nutmeg
  • ¼ teaspoon Fine sea salt
  • 4 tablespoons Unsalted butter melted and cooled
  • 8 large Eggs
  • 1 cup Whole milk
  • ½ cup Heavy cream
  • 1 tablespoon Vanilla extract

For the Topping

  • ½ cup All-purpose flour
  • ½ cup Light brown sugar packed
  • ½ cup Old-fashioned oats
  • ¾ teaspoon Ground cinnamon
  • ¼ teaspoon Fine sea salt
  • ½ cup Unsalted butter cold, sliced into ¼ inch cubes

Instructions
 

Instructions

  • Spray the Pan: Start by spraying a 13x9 glass pan with cooking spray. Spread the cubed brioche bread evenly in the pan.
  • Whisk the Mixture: In a medium-sized bowl, whisk together the light brown sugar, ground cinnamon, ground nutmeg, and fine sea salt. Stir in melted butter, add in the eggs, whole milk, heavy cream, and vanilla extract and whisk until smooth. Pour over the cubed bread.
  • Toss the Bread: Gently toss the cubed bread in the egg mixture to ensure it’s well-coated. Don't overmix; a few chunks can be delightful.
  • Refrigerate the Casserole: Cover the pan with plastic wrap and place in the refrigerator. Chill for at least 3 hours or overnight (up to 12 hours).
  • Prepare the Topping: Stir together the all-purpose flour, light brown sugar, old-fashioned oats, ground cinnamon, and fine sea salt in a small bowl. Incorporate the cold cubed butter and mix until coated, breaking down until it resembles a dough-like crumble.
  • Preheat and Bake: Preheat your oven to 350°F. Take the topping mixture from the fridge, break it into small pieces, and spread it evenly over the casserole.
  • Bake to Perfection: Bake for about 45-60 minutes, until the topping turns golden brown and is crispy.

Notes

Optional: Drizzle with maple syrup for an extra special touch. Choose quality brioche for the best texture and flavor.
Keyword breakfast casserole, brioche, brunch, comfort food, French Toast, Overnight Brioche French Toast Casserole