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Overnight French Toast Casserole Recipe

Overnight French Toast Casserole Recipe


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4.7 from 38 reviews

  • Total Time: 9 hours (with chilling time)
  • Yield: 8 1x

Description

Sweet dreams of breakfast come alive with this overnight french toast casserole, blending rich custard-soaked bread with maple-kissed layers. Weekend mornings become delightful when you wake to this effortless, make-ahead comfort classic ready to serve straight from the oven.


Ingredients

Scale

Bread and Egg Base:

  • 1 loaf of French bread or brioche, cut into 1-inch cubes (about 10 cups)
  • 8 large eggs

Dairy and Sweeteners:

  • 2 cups (480 ml) whole milk
  • ½ cup (120 ml) heavy cream
  • ¾ cup (150 g) granulated sugar
  • ¼ cup (55 g) packed brown sugar
  • ½ cup (100 g) packed brown sugar

Spices and Flavor Enhancers:

  • 2 teaspoons vanilla extract
  • 1 teaspoon ground cinnamon
  • ¼ teaspoon ground nutmeg (optional)
  • ¼ teaspoon ground nutmeg (optional)
  • Pinch of salt

Crumble Topping Ingredients:

  • ¼ cup (50 g) granulated sugar
  • ½ cup (65 g) all-purpose flour
  • 1 teaspoon ground cinnamon
  • ½ cup (115 g) unsalted butter, cold and cubed

Optional Toppings:

  • Maple syrup
  • Powdered sugar
  • Fresh berries

Instructions

  1. Prepare the baking foundation by coating a 9×13-inch dish with a light butter layer to prevent sticking. Distribute bread cubes uniformly across the entire surface, ensuring maximum coverage.
  2. Create a silky custard mixture by vigorously whisking eggs, milk, cream, sugars, vanilla, cinnamon, nutmeg, and salt in a spacious mixing bowl until ingredients blend seamlessly into a uniform liquid.
  3. Gently cascade the custard over bread cubes, using gentle pressure to help bread absorb the liquid completely. Press down softly to guarantee even saturation throughout the dish.
  4. Seal the casserole with plastic wrap and transfer to the refrigerator. Allow the bread to marinate and soak overnight, permitting flavors to meld and develop deep, rich undertones.
  5. Craft a crumbly topping by combining brown sugar, granulated sugar, flour, cinnamon, and nutmeg in a separate bowl. Incorporate cold butter using fingertips or a pastry cutter until the mixture transforms into a coarse, sandy texture.
  6. Preheat the oven to 350°F, removing the casserole from refrigeration. Sprinkle the prepared crumble evenly across the soaked bread, creating a textured, golden crown.
  7. Bake uncovered for 45-50 minutes, monitoring until the top turns a beautiful golden brown and the custard sets firmly in the center.
  8. Allow the casserole to rest and slightly cool for 5-10 minutes after removing from the oven. Enhance the presentation by drizzling maple syrup, dusting with powdered sugar, or garnishing with fresh seasonal berries.

Notes

  • Bread Selection Matters: Choose day-old or slightly stale bread like brioche, challah, or French bread for the best texture and absorption of the custard mixture.
  • Overnight Soaking Secret: Letting the casserole sit overnight allows the bread to fully absorb the rich custard, creating a decadent and creamy consistency.
  • Customize Your Crumble: Swap nuts like pecans or walnuts into the crumble topping for added crunch and depth of flavor.
  • Diet-Friendly Adaptations: Use gluten-free bread for a celiac-friendly version, or swap whole milk with almond or oat milk for a dairy-free alternative.
  • Prep Time: 15 minutes
  • Cook Time: Overnight (or at least 4 hours)
  • Category: Breakfast, Snacks, Desserts
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 8
  • Calories: 350
  • Sugar: 20 g
  • Sodium: 300 mg
  • Fat: 18 g
  • Saturated Fat: 11 g
  • Unsaturated Fat: 7 g
  • Trans Fat: 0 g
  • Carbohydrates: 42 g
  • Fiber: 1 g
  • Protein: 8 g
  • Cholesterol: 210 mg