Sourdough French Toast Casserole: Easy, Custardy Breakfast for Families

One chilly Sunday morning, I found myself raiding my kitchen for something comforting and quick for the family. With a loaf of sourdough sitting on the counter, inspiration struck: a cozy, custardy sourdough French toast casserole. Easy, customizable, and perfect for busy mornings, this dish combines the tang of sourdough with a sweet, satisfying custard. It’s family-friendly, can be made overnight or same day, and is ideal for holidays or weeknight brunches.

Why You’ll Love This Recipe

If you’re looking for a breakfast or brunch that’s quick, easy, and irresistibly comforting, this sourdough French toast casserole is your new go-to. Using day-old sourdough, this recipe transforms simple ingredients into a custardy, golden-baked delight that’s perfect for sourdough French toast casserole overnight or a same-day breakfast. It’s family-friendly, customizable with blueberries, chocolate, or nuts, and balances indulgence with simplicity. Whether you’re prepping for a busy weeknight or a special occasion, this easy sourdough French toast casserole delivers a hearty, flavorful start to your day while keeping prep stress-free and fuss minimal.

Ingredients for This Recipe

This sourdough French toast casserole combines simple, wholesome ingredients to create a rich, custardy breakfast that’s both comforting and customizable. The day-old sourdough bread soaks up a mixture of eggs, milk, cream, and spices, giving each bite a perfect balance of texture and flavor. You can elevate this easy sourdough French toast casserole by adding fresh blueberries for a fruity twist or chocolate chips for a decadent treat. Vanilla, cinnamon, and nutmeg bring warmth and aroma, while optional toppings like maple syrup or powdered sugar make each serving feel indulgent yet family-friendly. This combination of ingredients makes it perfect for an overnight soak or same-day preparation, delivering a delicious, stress-free breakfast for busy mornings or special occasions.

🛒 Ingredients (for 8–10 servings):

For the Casserole:

• 1 loaf day-old sourdough bread, cut into 1-inch cubes
• 8 large eggs
• 2 cups whole milk (or almond milk)
• 1 cup heavy cream
• ½ cup granulated sugar
• 2 teaspoons vanilla extract
• 1 teaspoon ground cinnamon
• ¼ teaspoon ground nutmeg
• Pinch of salt

Optional Add-Ins / Toppings:

• ½–1 cup fresh blueberries (sourdough French toast casserole with blueberries)
• ½ cup chocolate chips (chocolate sourdough French toast casserole)
• Maple syrup, powdered sugar, or whipped cream for serving

How to Make This Recipe

Making a sourdough French toast casserole is easier than you might think, and the results are both impressive and comforting. This recipe transforms simple ingredients—day-old sourdough, eggs, milk, cream, sugar, and warm spices—into a custardy, golden-baked breakfast that the whole family will love. By letting the bread soak, either overnight or for a same-day version, the flavors fully meld, creating the perfect balance of texture and richness. You can customize your casserole into a chocolate sourdough French toast casserole or a sourdough French toast casserole with blueberries for added sweetness and visual appeal. This easy sourdough French toast casserole is ideal for busy mornings, brunch gatherings, or even special occasions, offering a family-friendly, stress-free dish that feels indulgent without being complicated.

🛒 Steps:

• Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish.
• Cut 1 loaf of day-old sourdough bread into 1-inch cubes and place them evenly in the prepared dish.
• In a large bowl, whisk together 8 large eggs, 2 cups milk, 1 cup heavy cream, ½ cup granulated sugar, 2 teaspoons vanilla extract, 1 teaspoon ground cinnamon, ¼ teaspoon nutmeg, and a pinch of salt.
• Pour the custard mixture over the bread cubes, gently pressing to ensure the bread absorbs the liquid.
• Add optional toppings such as ½–1 cup fresh blueberries for sourdough French toast casserole with blueberries or ½ cup chocolate chips for chocolate sourdough French toast casserole.
• For an overnight version, cover and refrigerate 8–12 hours; for a same-day version, let it soak 20–30 minutes.
• Cover with foil and bake 30 minutes, remove foil, then bake an additional 15–20 minutes until golden and set.
• Let cool slightly, then serve with maple syrup, powdered sugar, or whipped cream.

Expert Cooking Tips

Creating the perfect sourdough French toast casserole is all about understanding your ingredients and how to use them. Day-old sourdough bread absorbs the custard better than fresh bread, ensuring a rich, custardy texture in every bite. Eggs, milk, and cream form the base of this easy sourdough French toast casserole, while sugar, vanilla, cinnamon, and nutmeg add warmth and sweetness. You can intensify flavors by adding chocolate chips for a chocolate sourdough French toast casserole or fresh blueberries for a sourdough French toast casserole with blueberries. Whether you’re making it overnight or the same day, these tips help you achieve a family-friendly, customizable breakfast that’s golden, soft, and indulgent.

💡 Expert Tips:

• Use day-old sourdough bread to ensure the custard soaks evenly for a perfect texture in your sourdough French toast casserole.
• Whisk eggs, milk, and cream thoroughly to create a smooth custard that will coat all the bread cubes.
• Add spices like cinnamon and nutmeg gradually, tasting as you go, to intensify the flavor without overpowering the dish.
• Customize your casserole by folding in ½ cup chocolate chips for chocolate sourdough French toast casserole or ½–1 cup fresh blueberries for sourdough French toast casserole with blueberries.
• For an overnight version, cover tightly and refrigerate 8–12 hours; for same-day, allow at least 20–30 minutes for the bread to absorb the custard.
• Bake covered first to lock in moisture, then uncovered to achieve a golden, slightly crisp top.
• Serve with maple syrup, powdered sugar, or whipped cream for added sweetness and presentation flair.

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This sourdough French toast casserole is a versatile, family-friendly breakfast that’s perfect for busy mornings, special occasions, or weekend brunches. With day-old sourdough bread, a rich custard, and customizable options like chocolate or blueberries, it combines comfort, flavor, and ease in one dish. Whether you make it overnight for convenience or the same day for a quick treat, this easy sourdough French toast casserole delivers golden, custardy perfection every time. Try it and make breakfast memorable.

Sourdough French Toast Casserole

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• Author: Savannah
• Total Time: 1 hour–overnight
• Yield: 45–50 minutes 1x
• Diet: Vegetarian

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Description

A decadent, custardy breakfast casserole made with sourdough bread, perfect for family mornings or brunch. This recipe works overnight or the same day, and can be customized with blueberries, chocolate, or other fruits for extra flavor.

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Ingredients

Scale 1x2x3x

🛒 Ingredients (for 8–10 servings):

For the Casserole:

• 1 loaf day-old sourdough bread, cut into 1-inch cubes

• 8 large eggs

• 2 cups whole milk (or almond milk)

• 1 cup heavy cream

• ½ cup granulated sugar

• 2 teaspoons vanilla extract

• 1 teaspoon ground cinnamon

• ¼ teaspoon ground nutmeg

• Pinch of salt

Optional Add-Ins / Toppings:

• ½–1 cup fresh blueberries (sourdough French toast casserole with blueberries)

• ½ cup chocolate chips (chocolate sourdough French toast casserole)

• Maple syrup, powdered sugar, or whipped cream for serving

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Instructions

📝 Instructions:

Step 1: Prep the Bread

• Grease a 9×13-inch baking dish.

• Place the cubed sourdough bread evenly in the dish.

Step 2: Make the Custard

• In a large bowl, whisk together eggs, milk, cream, sugar, vanilla, cinnamon, nutmeg, and salt.

Step 3: Assemble the Casserole

• Pour the custard evenly over the bread cubes.

• Gently press down so the bread absorbs the liquid.

• Sprinkle blueberries or chocolate chips on top if desired.

Step 4: Soak

• Overnight Option: Cover and refrigerate for 8–12 hours.

• Same-Day Option: Let soak for at least 20–30 minutes at room temperature.

Step 5: Bake

• Preheat oven to 350°F (175°C).

• Cover with foil and bake 30 minutes.

• Remove foil and bake another 15–20 minutes until golden and set.

Step 6: Serve

• Let cool slightly, then drizzle with maple syrup or dust with powdered sugar.

Notes

• Starter Sourdough Tip: Using your sourdough starter or simplicity and starter sourdough French toast casserole techniques gives extra flavor.
• Make Ahead: Assemble overnight for effortless morning baking.
• Customization: Add nuts, sliced strawberries, or drizzle chocolate for a fun twist.

• Prep Time: 15 minutes
• Cook Time: 45–50 minutes
• Category: Breakfast / Brunch
• Method: Baked
• Cuisine: American