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Sourdough French toast casserole served with berries.
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5 from 3 votes

Sourdough French Toast Casserole

This sourdough French toast casserole is soft, custardy, and so easy to make ahead! Prep it overnight and bake fresh in the morning for a no-fuss breakfast that’s perfect for weekdays or weekend brunch.
Prep Time10 minutes
Cook Time30 minutes
Total Time40 minutes
Course: Breakfast
Cuisine: American
Servings: 6 servings
Author: Lily Payen

Ingredients

Casserole Base

  • 5 cups cubed sourdough bread about 10 oz cut into 1-inch cubes
  • 3 large eggs
  • ¾ cup whole milk
  • 3 tbsp pure maple syrup
  • 1 tsp vanilla extract
  • ½ tsp ground cinnamon
  • tsp salt

Cinnamon Sugar Topping (Optional)

  • 2 tbsp brown sugar
  • ¼ tsp ground cinnamon
  • tsp salt

Instructions

  • Preheat oven to 375°F (190°C) and grease a 9-inch by 9-inch baking pan.
  • Make the custard. In a medium bowl, whisk together eggs, milk, maple syrup, vanilla, cinnamon, and salt until well combined.
  • Place the chopped bread cubes into the greased pan. Pour the custard mixture evenly over the bread cubes, and use a spoon to stir everything in the pan until all of the bread cubes are fully coated with the custard. Lightly press down.
  • Make the cinnamon sugar coating. Combine the brown sugar, cinnamon, and salt in a small bowl. Sprinkle this mixture evenly over the soaked bread cubes.
  • Bake uncovered for 25 to 30 minutes, until golden brown and set in the middle. Let cool for a few minutes before serving warm with your favorite toppings.

Notes

  • Use day-old bread. Slightly stale sourdough soaks up the custard perfectly and keeps the casserole from getting too soggy.
  • Make sure to give the bread cubes a good mix to ensure that all of the cubes are fully coated with the custard.
  • If you have some time, you can soak it for 2 hours up to overnight to ensure the bread soaks up all of the moisture, but this isn't necessary, and you can bake this right away.
  • Toss in blueberries, chocolate chips, or diced apples, or chopped nuts for some fun flavor variations. You can also add these on as toppings after the casserole is baked.

Nutrition

Calories: 228kcal | Carbohydrates: 36g | Protein: 10g | Fat: 5g | Saturated Fat: 2g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Trans Fat: 0.01g | Cholesterol: 97mg | Sodium: 418mg | Potassium: 167mg | Fiber: 1g | Sugar: 10g | Vitamin A: 185IU | Vitamin C: 0.01mg | Calcium: 92mg | Iron: 3mg

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