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Overnight Baked Banana French Toast Casserole Recipe


  • Author: Olivia
  • Total Time: 8 hours 60 minutes (includes overnight soaking)
  • Yield: 8 servings 1x
  • Diet: Vegetarian

Description

This Overnight Baked Banana French Toast Casserole is a delicious and comforting breakfast dish perfect for lazy mornings or special occasions. Made with sourdough or French bread soaked overnight in a rich mixture of eggs, milk, cream, and sugars, it’s studded with ripe bananas and topped with a buttery, sweet streusel. Baked to golden perfection, this casserole is soft, flavorful, and easy to prepare ahead of time.


Ingredients

Scale

Main Ingredients

  • 1 lb sourdough or French bread, cut into chunks
  • 67 medium ripe bananas, chopped
  • 8 large eggs
  • 2 cups milk (whole or 2%)
  • 1/2 cup heavy whipping cream
  • 1/2 cup sugar
  • 1/4 cup light brown sugar

Streusel Topping

  • 3/4 cup all-purpose flour
  • 3/4 cup firmly packed brown sugar
  • 1/2 cup salted butter

Instructions

  1. Prepare the casserole dish: Grease a 9×13 inch casserole dish thoroughly to ensure the casserole does not stick during baking.
  2. Combine bread and bananas: In a large bowl, combine the chunks of sourdough or French bread with the chopped ripe bananas, evenly distributing the banana pieces.
  3. Mix the custard: In a separate bowl, whisk together the eggs, milk, heavy cream, white sugar, light brown sugar, vanilla extract, and cinnamon until well combined to create a smooth custard mixture.
  4. Soak the bread and bananas: Pour the custard mixture over the bread and banana pieces, stirring gently to make sure every chunk is well coated with the custard.
  5. Refrigerate overnight: Transfer the custard-soaked bread and bananas to the prepared casserole dish, cover it tightly, and refrigerate overnight to allow the bread to absorb the custard fully.
  6. Preheat oven and begin baking: The next morning, preheat your oven to 350°F (176°C). Place the casserole in the oven and bake for about 30 minutes.
  7. Prepare and add streusel topping: While the casserole bakes, combine the all-purpose flour, brown sugar, and salted butter in a bowl. Crumble this streusel topping over the casserole during the last five to ten minutes of baking, then continue baking until the topping is golden brown and crumbly.
  8. Serve warm: Remove the casserole from the oven and let it cool slightly. Serve warm with maple syrup or your choice of additional toppings such as fresh fruit or whipped cream.

Notes

  • Use day-old or slightly stale bread for best texture as it soaks up the custard better.
  • Ripe, soft bananas add natural sweetness and moisture; avoid overly brown or mushy bananas.
  • The overnight soak is essential for a soft and custardy interior.
  • You can make the streusel topping dairy-free by substituting the butter with a plant-based alternative.
  • For a gluten-free version, substitute bread and flour with gluten-free alternatives.
  • Reheat leftovers in the oven or microwave for a quick breakfast.
  • Prep Time: 20 minutes
  • Cook Time: 40 minutes
  • Category: Breakfast
  • Method: Baking
  • Cuisine: American

Keywords: banana French toast casserole, overnight French toast, baked French toast, breakfast casserole, banana breakfast bake, streusel topping French toast