Name: Best Blueberry French Toast Casserole
Prep time: 15 min
Cook time: PT-491602H22M30S
Total time: 1 h
Cuisine: American
Ingredients: 1 loaf day-old brioche, challah, or French bread, cubed (about 10 cups); 6 large eggs; 2 ½ cups milk (or half-and-half for richness); ⅓ cup maple syrup or brown sugar; 1 tablespoon vanilla extract; 1 teaspoon ground cinnamon; ¼ teaspoon salt; 1 ½ cups fresh or frozen blueberries, divided; Optional: 1 cup cream cheese, cut into small cubes; Optional toppings: powdered sugar, maple syrup, or extra blueberries for serving

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The Best Blueberry French Toast Casserole is soft, golden, and filled with bursts of juicy blueberries layered between warm cinnamon-kissed bread. I love how it combines everything I enjoy about classic French toast—sweet, custardy, and comforting—into a make-ahead dish that’s perfect for brunch, holidays, or lazy weekends.

Why You’ll Love This Recipe

I love this recipe because it’s easy, feeds a crowd, and can be prepared the night before. The bread soaks up a creamy vanilla-cinnamon custard, the blueberries add freshness and brightness, and the baked topping becomes perfectly golden. It tastes like a cozy blueberry muffin meets traditional French toast—and I never get tired of it. Best Blueberry French Toast Casserole

Ingredients

(Here’s a tip: Check out the full list of ingredients and measurements in the recipe card below.)

Day-old bread (brioche, challah, or French bread), cubed
Eggs
Milk (or half-and-half for extra richness)
Maple syrup or brown sugar
Vanilla extract
Ground cinnamon
Salt
Fresh or frozen blueberries
Optional: cream cheese cubes for a richer, cheesecake-like layer
Optional topping: powdered sugar or maple syrup for serving

Directions

I lightly grease a 9×13-inch baking dish and fill it with cubed bread and a layer of blueberries (reserving some for the top).
In a mixing bowl, I whisk together eggs, milk, maple syrup, vanilla, cinnamon, and a pinch of salt until well combined.
I pour the egg mixture evenly over the bread, pressing the cubes gently to soak up the custard.
I sprinkle the remaining blueberries on top, cover the dish, and refrigerate for at least 2 hours or overnight.
When ready to bake, I preheat the oven to 350°F (175°C), uncover the casserole, and bake for 45–50 minutes or until the top is golden and the center is set.
I let it rest for 5–10 minutes before serving with maple syrup, powdered sugar, or fresh blueberries.

Servings and timing

This recipe makes about 8 servings and takes 15 minutes to prep, plus 45–50 minutes to bake. If made overnight, it’s even easier the next morning—just pop it in the oven and go.

Variations

I add a cream cheese swirl by mixing cubes into the layers for a cheesecake-style twist.
I swap blueberries for raspberries, strawberries, or a berry blend.
I top it with a crunchy oat streusel for added texture.
I use almond milk and coconut sugar to make it dairy-free.

storage/reheating

I store leftovers covered in the fridge for up to 3 days. To reheat, I warm individual portions in the microwave or reheat the whole dish in the oven at 325°F until heated through. It also freezes well—just wrap tightly and thaw before baking or reheating. Best Blueberry French Toast Casserole

FAQs

Can I use frozen blueberries?

Yes! I use them straight from the freezer—no need to thaw. I just fold them in gently so they don’t color the bread too much.

What kind of bread works best?

Day-old brioche or challah is my favorite because it’s soft and rich. French bread or sandwich bread also works well.

Can I make this dairy-free?

Absolutely. I use plant-based milk and skip the cream cheese or use a vegan version.

Can I bake it right away?

It’s best when it soaks for at least 2 hours, but if I’m short on time, I let it rest for 30 minutes and bake. The texture may be slightly less custardy.

Is it sweet enough on its own?

It’s lightly sweet, so I often serve it with maple syrup. If I want it sweeter, I increase the maple syrup or sprinkle a little sugar on top before baking.

Conclusion

The Best Blueberry French Toast Casserole is everything I love about comfort food—warm, soft, fruity, and full of flavor. It’s a make-ahead dream that makes mornings easier and more delicious. Whether I’m hosting brunch or just want a treat for myself, this recipe never fails to impress.

Best Blueberry French Toast Casserole

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The Best Blueberry French Toast Casserole is a warm, soft, and fruity breakfast bake layered with juicy blueberries and cinnamon-spiced bread soaked in a rich custard. It’s perfect for make-ahead brunches, holidays, or lazy mornings.

Author: Lizaa
Prep Time: 15 minutes
Cook Time: 45–50 minutes
Total Time: 1 hour
Yield: 8 servings
Category: Breakfast
Method: Baking
Cuisine: American
Diet: Vegetarian

Ingredients

1 loaf day-old brioche, challah, or French bread, cubed (about 10 cups)
6 large eggs
2 ½ cups milk (or half-and-half for richness)
⅓ cup maple syrup or brown sugar
1 tablespoon vanilla extract
1 teaspoon ground cinnamon
¼ teaspoon salt
1 ½ cups fresh or frozen blueberries, divided
Optional: 1 cup cream cheese, cut into small cubes
Optional toppings: powdered sugar, maple syrup, or extra blueberries for serving

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Instructions

Lightly grease a 9×13-inch baking dish. Add cubed bread and half of the blueberries (and cream cheese cubes, if using).
In a large bowl, whisk together eggs, milk, maple syrup, vanilla, cinnamon, and salt until well combined.
Pour the egg mixture evenly over the bread. Press down gently to help the bread absorb the custard.
Sprinkle remaining blueberries over the top. Cover and refrigerate for at least 2 hours or overnight.
When ready to bake, preheat oven to 350°F (175°C). Uncover and bake for 45–50 minutes until golden and set.
Let rest for 5–10 minutes before serving. Top with maple syrup, powdered sugar, or more blueberries as desired.