Overnight Blueberry French Toast Casserole – Your Easy Go-To Brunch Recipe!

Baked blueberry French toast casserole with fresh blueberries and maple syrup.

Imagine waking up to the irresistible aroma of cinnamon, vanilla, and sweet blueberries, knowing that breakfast is already half-done. That’s the magic of this Overnight Blueberry French Toast Casserole! It’s the ultimate solution for stress-free mornings, whether you're hosting a brunch, celebrating a holiday, or simply want a delicious start to your weekend.

This casserole takes classic French toast and elevates it into a make-ahead masterpiece. Cubes of day-old bread are lovingly drenched in a rich, spiced custard, then layered with a sweet cream cheese filling and vibrant blueberries. The overnight soak transforms simple ingredients into a custardy, flavorful bake with tender pockets of cheesecake-like goodness. It’s truly a dish you’ll love to prepare and devour!

Why You'll Adore This Make-Ahead Blueberry Casserole

Life gets busy, but delicious breakfasts shouldn't be a sacrifice. This recipe is a game-changer for several reasons:

  • Effortless Mornings: Do all the prep the night before, then simply pop it in the oven the next morning. More time for coffee and relaxation!
  • Crowd-Pleaser: Easily serves a hungry family or a brunch crowd without the hassle of flipping individual slices of French toast.
  • Irresistible Flavor: The combination of sweet blueberries, tangy cream cheese, and a warm spiced custard is simply divine.
  • Versatile: Perfect for special occasions like Christmas morning or a casual Sunday brunch.

The secret weapon here? A luscious layer of sweetened cream cheese. As it bakes, it creates creamy, slightly tangy pockets that perfectly complement the sweet custard and juicy blueberries, making every bite feel incredibly indulgent.

Essential Ingredients for Success

This recipe relies on simple, wholesome ingredients you likely already have on hand. The key is choosing the right bread for optimal texture.

The Best Bread for French Toast Casserole

Don't underestimate the power of good bread! For French toast casseroles, a sturdy, day-old loaf is your best friend. Options like French bread, challah, or brioche absorb the custard beautifully without becoming soggy. If you only have fresh bread, cube it and let it air-dry for a few hours, or toast it lightly in a 300°F (150°C) oven for 10-15 minutes to remove excess moisture.

Using dried bread ensures those lovely crisp edges while keeping the inside wonderfully custardy.

Overnight Blueberry French Toast Casserole

Tips for Perfect Blueberries

Both fresh and frozen blueberries work wonderfully in this recipe. If using frozen, there's no need to thaw them beforehand; simply scatter them into the layers. They'll release their sweet juices as they bake, adding beautiful streaks of color and flavor. If you're a fan of blueberry desserts, you might also enjoy our Blueberry Lemon Mole Bars with Meringue for another sweet treat.

How to Master Your Overnight French Toast Casserole

This recipe is incredibly forgiving, making it perfect for novice and experienced bakers alike. Follow these simple steps for a truly memorable breakfast.

Prepping the Cream Cheese Layer

The cream cheese filling is what sets this casserole apart. Ensure your cream cheese is softened to room temperature for a smooth, lump-free mixture. You'll blend it with powdered sugar, a touch of milk, and vanilla before gently folding in some blueberries. This creates those delightful

FAQs

What type of bread is best for overnight French toast casserole?

Hearty, day-old bread like French bread, challah, or brioche is ideal. Their sturdy texture allows them to soak up the custard without becoming too soggy. Avoid soft sandwich bread.

How long can the Overnight Blueberry French Toast Casserole sit in the fridge before baking?

For the best texture and flavor absorption, allow it to chill for at least 8 hours, and ideally no longer than 12-14 hours. This ensures the bread is perfectly saturated.

Can I bake this casserole right after assembling it?

While overnight chilling yields the most superior texture and flavor, you can bake it after letting it rest for 30-60 minutes at room temperature if you're in a hurry. The flavors just won't be as deeply melded.

Print
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Baked blueberry French toast casserole with fresh blueberries and maple syrup.

Overnight Blueberry French Toast Casserole


  • Total Time: 90 minutes + 8 hours chilling
  • Yield: 8-10 servings 1x
  • Diet: Vegetarian

Description

A delightful, make-ahead breakfast casserole featuring cubes of day-old bread soaked in a sweet, spiced custard, layered with a creamy, sweetened cream cheese mixture and bursts of fresh blueberries, perfect for lazy mornings or special brunches.


Ingredients

Scale

1 loaf (approx. 1 lb) day-old French bread, cut into 1-inch cubes
8 ounces cream cheese, softened
1 cup powdered sugar
2 tablespoons milk
1 teaspoon vanilla extract (for cream cheese mixture)
1 cup fresh or frozen blueberries (for cream cheese mixture)
8 large eggs
2 cups milk (for custard)
1 teaspoon ground cinnamon
½ teaspoon ground nutmeg
1 teaspoon vanilla extract (for custard)
1 cup fresh or frozen blueberries (for topping)
Optional: Maple syrup, powdered sugar, or whipped cream for serving


Instructions

Step 1: Prepare the Cream Cheese Mixture. In a medium bowl, combine softened cream cheese, powdered sugar, 2 tablespoons milk, and 1 teaspoon vanilla extract. Stir until the mixture is smooth and creamy. Gently fold in 1 cup of blueberries.
Step 2: Layer the Bread and Cream Cheese. Grease a 9x13 inch baking dish. Spread half of the cubed French bread evenly across the bottom of the dish. Dollop spoonfuls of the cream cheese mixture over the bread, then gently spread it to cover as much surface as possible. Top with the remaining French bread cubes.
Step 3: Prepare and Pour the Custard. In a large bowl, whisk together the eggs, 2 cups milk, cinnamon, nutmeg, and 1 teaspoon vanilla extract until well combined. Carefully pour this egg mixture evenly over the bread in the baking dish, ensuring all bread cubes are thoroughly moistened. Sprinkle the remaining 1 cup of blueberries over the top.
Step 4: Chill Overnight. Cover the baking dish tightly with aluminum foil and refrigerate for at least 8 hours, or preferably overnight (up to 14 hours). This allows the bread to fully absorb the custard, resulting in a rich, custardy texture.
Step 5: Bake and Serve. Preheat your oven to 375°F (190°C). Remove the casserole from the refrigerator and let it sit at room temperature for about 30 minutes while the oven preheats. Bake the casserole, covered with foil, for 45 minutes. Then, remove the foil and continue baking for another 25-30 minutes, or until the top is golden brown and puffed, and a knife inserted into the center comes out mostly clean. Let it rest for 10 minutes before serving.
Step 6: Garnish and Enjoy. Serve warm with your favorite toppings such as maple syrup, a dusting of powdered sugar, or a dollop of whipped cream. For another delightful breakfast treat, try our Cherry Rhubarb Coffee Bars with Cardamom and Anise.

Notes

Using day-old bread is crucial for preventing a soggy casserole. For an even more decadent touch, consider using brioche or challah bread. Don't rush the overnight chilling step, as it's key to the casserole's custardy texture.

  • Prep Time: 15 minutes
  • Cook Time: 75 minutes
  • Category: Breakfast, Brunch
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 slice
  • Calories: 380 kcal
  • Sugar: 28g
  • Sodium: 320mg
  • Fat: 15g
  • Saturated Fat: 8g
  • Unsaturated Fat: 5g
  • Trans Fat: 0g
  • Carbohydrates: 55g
  • Fiber: 3g
  • Protein: 12g
  • Cholesterol: 170mg
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