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Overnight French Toast Casserole

A cozy breakfast dish transforming classic French toast into an effortless casserole, perfect for gatherings and special occasions.
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Prep Time 15 minutes
Cook Time 50 minutes
Total Time 6 hours
Servings: 10 servings
Course: Breakfast, Brunch
Cuisine: American
Calories: 350
Ingredients Method Notes

Ingredients
  

Casserole Ingredients
  • 1 loaf 16 ounces Brioche bread, cubed The richer, the better!
  • 8 large eggs, room temperature, beaten Fresh farm eggs are ideal
  • 2 cups whole milk, room temperature Substitute with almond milk for a dairy-free version
  • 1/2 cup heavy whipping cream, room temperature Use half-and-half for a lighter option
  • 3/4 cup light brown sugar, packed Helps create that caramelized flavor
  • 2 teaspoons vanilla extract Pure vanilla adds the best flavor
  • 1 teaspoon cinnamon For that warm, comforting touch
  • 1/2 teaspoon kosher salt Balances the sweetness
Topping
  • 1/2 cup all-purpose flour Make sure to scoop it correctly to avoid a dense topping
  • 1/2 cup light brown sugar, packed
  • 1 teaspoon ground cinnamon
  • 1/4 teaspoon kosher salt
  • 1/2 cup unsalted butter, melted Room temperature for blending
  • to taste confectioners' sugar For garnish, optional
  • to taste pure maple syrup For serving

Method
 

Preparation
  1. Start by spraying a 9x13-inch baking dish with nonstick cooking spray. Add the cubed brioche in an even layer, making a beautiful base for your casserole.
  2. In a large mixing bowl, whisk together the beaten eggs, whole milk, heavy cream, brown sugar, vanilla extract, cinnamon, and kosher salt. Make sure it’s smooth and mixed well.
  3. Pour the custard mixture evenly over the bread cubes. Gently press down to ensure every piece of bread gets soaked. Cover with plastic wrap and refrigerate for at least 4 hours, or let it sit overnight for the best results.
  4. In a medium bowl, whisk together the flour, brown sugar, ground cinnamon, and kosher salt for the topping. Add the melted butter and mix until crumbly and everything is well combined. Cover this topping mixture and refrigerate until you’re ready to bake.
Baking
  1. Preheat your oven to 350F (175C). Remove the casserole from the fridge and sprinkle the prepared topping evenly over the soaked bread.
  2. Bake uncovered for 45-55 minutes, or until the top is golden brown and the center is set. Let it rest for 10 minutes before serving.
Serving
  1. Dust generously with confectioners' sugar, and drizzle with pure maple syrup before serving.

Notes

Use high-quality brioche or challah bread for the best texture. Allow eggs, cream, and milk to come to room temperature to create a well-mixed custard.