Why You’ll Love This Recipe

Blueberry Strawberry French Toast Casserole is a luscious, make-ahead breakfast or brunch dish that combines fluffy bread cubes with a rich custard and layers of sweet, juicy berries. Baked until golden and topped with a buttery crumble or syrup, it’s perfect for holidays, family gatherings, or lazy weekend mornings.

ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

day-old brioche or French bread (cubed)
fresh blueberries
fresh strawberries (hulled and sliced)
eggs
whole milk
heavy cream
granulated sugar
vanilla extract
ground cinnamon
salt
butter (for greasing and optional topping)
optional: powdered sugar or maple syrup for serving

directions

Grease a 9×13-inch baking dish with butter or nonstick spray.

Layer half of the bread cubes in the bottom of the dish.

Scatter half of the blueberries and strawberries over the bread.

Repeat with remaining bread and berries.

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

Pour the custard mixture evenly over the bread and berries, pressing down lightly to help the bread absorb the liquid.

Cover and refrigerate for at least 4 hours or overnight.

Preheat oven to 350°F (175°C).

Bake the casserole uncovered for 45-55 minutes, or until the top is golden and the center is set.

Let cool for 10 minutes before serving. Top with powdered sugar, syrup, or a pat of butter if desired.

Servings and timing

This recipe yields approximately 8 servings.
Preparation time: 20 minutes
Chilling time: 4 hours to overnight
Baking time: 45–55 minutes
Total time: 5–6 hours (with overnight option)

Variations

Add a crumble topping with butter, brown sugar, and oats for extra texture.

Use cream cheese chunks for a rich twist.

Swap in raspberries or blackberries depending on what’s in season.

Flavor the custard with almond extract for a nutty undertone.

Top with whipped cream or yogurt when serving for added richness.

storage/reheating

Store leftovers covered in the refrigerator for up to 4 days.
Reheat individual portions in the microwave or bake covered at 325°F (160°C) for 15–20 minutes until warmed through.
This casserole also freezes well for up to 2 months—thaw in the fridge before reheating.

FAQs

Can I use frozen berries?

Yes, just thaw and drain them first to prevent excess liquid.

What kind of bread works best?

Day-old brioche, challah, or French bread hold up well and soak the custard beautifully.

Can I make it dairy-free?

Yes, use almond or oat milk and a non-dairy cream substitute.

Can I skip chilling overnight?

You can bake it after at least 1–2 hours of soaking, but overnight yields best results.

Can I prepare and freeze it before baking?

Yes, assemble, cover tightly, and freeze. Thaw in the fridge before baking as directed.

How do I prevent soggy spots?

Use sturdy bread and ensure even soaking; press down gently before chilling.

Can I reduce the sugar?

Yes, adjust to taste or use a natural sweetener like maple syrup or honey.

Is it sweet enough without syrup?

Yes, but a drizzle of maple syrup enhances the flavors beautifully.

Can I add nuts?

Chopped pecans or almonds add a lovely crunch to the top.

How do I know when it’s done?

The center should be set and not jiggly, and the top should be golden brown.

Conclusion

Blueberry Strawberry French Toast Casserole is a vibrant, fruit-filled dish that’s as easy as it is indulgent. Whether you’re hosting a brunch or prepping breakfast ahead of time, this casserole delivers sweet, custardy comfort in every bite. Make it once, and it’s bound to become a staple on your table.