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Overnight Baked Banana French Toast Casserole Recipe


  • Author: Lily
  • Total Time: 8 hours 55 minutes
  • Yield: 8 servings 1x

Description

This Overnight Baked Banana French Toast Casserole is a delicious and comforting breakfast dish featuring chunks of sourdough or French bread soaked in a creamy egg and milk mixture, layered with ripe bananas, and baked to golden perfection. Topped with a buttery brown sugar streusel, it’s perfect for a make-ahead breakfast or brunch that is sweet, rich, and wonderfully satisfying.


Ingredients

Scale

Main Ingredients

  • 1 lb sourdough or French bread, cut into chunks
  • 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
  • 67 medium ripe bananas, chopped

Streusel Topping

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

Instructions

  1. Prepare the dish: Grease a 9×13 inch casserole dish thoroughly to prevent sticking and allow easy serving.
  2. Combine bread and bananas: In a large bowl, add the bread chunks and chopped bananas, mixing them gently to distribute evenly.
  3. Mix wet ingredients: In a separate bowl, whisk together the eggs, milk, heavy cream, sugar, light brown sugar, vanilla extract, and cinnamon until fully combined and smooth.
  4. Soak the bread: Pour the egg mixture over the bread and bananas in the large bowl, stirring gently to coat all pieces evenly without squashing the bananas.
  5. Refrigerate overnight: Transfer the soaked bread mixture into the greased casserole dish, cover tightly with plastic wrap or foil, and refrigerate overnight to allow the bread to absorb the custard.
  6. Bake the casserole: Preheat your oven to 350°F (176°C). Remove the casserole from the fridge and bake for 30-35 minutes until the edges are golden and the custard is set but still slightly jiggly in the middle.
  7. Prepare and add the streusel topping: While baking, mix together flour, brown sugar, and salted butter until crumbly. Sprinkle this streusel evenly over the casserole and return it to the oven for an additional 5 minutes, allowing the topping to brown and crisp.
  8. Serve: Remove from oven and let it cool slightly. Serve warm with maple syrup or your favorite breakfast toppings such as fresh fruit or whipped cream.

Notes

  • You can use sourdough or French bread; slightly stale bread works best as it absorbs the custard better.
  • Ripe bananas add natural sweetness and moistness but avoid overly mushy bananas to maintain texture.
  • The streusel topping adds a crunchy contrast but can be omitted if preferred.
  • Make sure to cover the casserole when refrigerating overnight to prevent drying out or absorbing fridge odors.
  • For a dairy-free option, substitute milk and cream with almond or oat milk and use a non-dairy butter alternative for the streusel.
  • This casserole can be assembled the night before and baked fresh in the morning, making it ideal for busy mornings or special occasions.
  • Prep Time: 15 minutes
  • Cook Time: 40 minutes
  • Category: Breakfast
  • Method: Baking
  • Cuisine: American

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