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An overnight French toast bake with toppings on the side.
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5 from 6 votes

Best Overnight French Toast Casserole

This delectable Overnight French Toast Casserole is the perfect make-ahead, easy breakfast that is prepared in just 10 minutes. Assemble this bake the night before and cook in the morning for a foolproof brunch with no hassle. I also top my french toast bake with a cinnamon streusel for even more decadence.
Prep Time10 minutes
Cook Time50 minutes
Total Time1 hour
Course: Breakfast
Cuisine: American, French
Keyword: breakfast, holidays
Servings: 12 servings
Calories: 378kcal

Ingredients
 

Base

  • 10 large eggs
  • 2 cups milk
  • ½ cup heavy whipping cream
  • ½ cup granulated sugar
  • 2 teaspoons vanilla extract
  • 18 ounce loaf sourdough bread cubed

Topping

  • ½ cup all purpose flour
  • ½ cup brown sugar
  • 1 ½ teaspoons cinnamon or pumpkin pie spice
  • ¼ teaspoon salt
  • ½ cup cold salted butter

Instructions

  • In a bowl, whisk together eggs, milk, heavy cream, sugar, and vanilla.
  • Arrange bread in an even layer in a greased 13"x9" pan or baking dish.
  • Pour the egg mixture evenly over the bread, and lightly press the bread down into the mixture.
  • For the topping, mix together flour, brown sugar, cinnamon, and salt in a bowl. Grate butter into the mixture, and mix until crumbly.
  • Cover both the baking dish and bowl. Refrigerate overnight.
  • Next day, remove both from the refrigerator while the oven preheats to 350°F. Evenly sprinkle the crumble mixture on top of the base. Bake 45-50 minutes or until the casserole is golden brown and set.
  • Serve with a variety of French toast toppings: maple syrup, fresh berries, whipped cream, chocolate drizzle, and sprinkles.

Video

Notes

  • Customize Flavors: Experiment with flavorings in the custard mixture. Add a pinch of nutmeg or a dash of almond extract for a unique twist.
  • Add Fresh Fruit: Integrate fresh fruit into the cubes of bread for bursts of flavor and natural sweetness. Berries, sliced apples, or peaches work well. Blueberry French Toast Casserole is a family favorite.
  • Nuts and Seeds: Add chopped nuts or seeds to the streusel topping for extra crunch and flavor.
  • Streusel Option: While it adds extra crunch and a savory sweetness, you can omit the topping if desired.
  • Reduced Sugar: If you prefer a lower-sugar option, reduce the amount of sugar in the custard mixture. The sweetness from fruits or a light dusting of powdered sugar can compensate. You can also try replacing white sugar with maple syrup, honey, or agave nectar for varied sweetness levels.
  • Individual Portions: This decadent French toast casserole can also be made in individual ramekins or small baking dishes. Simply butter each dish, fill evenly with the cubed loaf of bread and milk mixture, sprinkle the streusel on top and adjust the baking time as needed. It will need less time depending on the size of your dishes.

Nutrition

Calories: 378kcal | Carbohydrates: 46g | Protein: 12g | Fat: 16g | Saturated Fat: 9g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 5g | Trans Fat: 0.3g | Cholesterol: 188mg | Sodium: 447mg | Potassium: 206mg | Fiber: 1g | Sugar: 22g | Vitamin A: 690IU | Vitamin C: 0.1mg | Calcium: 117mg | Iron: 3mg
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