Blueberry French Toast Casserole is a delightful breakfast dish that combines the comforting flavors of French toast with the tart sweetness of blueberries. Perfect for a weekend brunch or a cozy morning gathering, this casserole can be prepared ahead of time and baked fresh for an easy, delicious meal.
Blueberry French toast casserole is the perfect dish for a lazy weekend brunch or a special holiday breakfast. This sweet, baked casserole brings together the classic flavors of French toast with the burst of fresh blueberries, all in one easy-to-make dish. It’s the kind of breakfast that feels indulgent yet comforting, and it’s sure to impress family and guests alike.
The base of this casserole is made with thick slices of bread, ideally a hearty, day-old bread like brioche or challah, which soaks up a rich custard mixture made from eggs, milk, cinnamon, vanilla, and a bit of sugar. This custard makes the French toast casserole custardy in the middle while allowing the top to become golden and crispy after baking. The blueberries add bursts of natural sweetness and tartness, creating the perfect contrast to the rich custard.
To make the casserole, simply layer the bread in a greased baking dish, adding fresh blueberries between the layers. Pour the egg mixture over the bread, ensuring that each slice is soaked well. For added flavor, you can sprinkle a little cinnamon and nutmeg on top. The casserole can be baked immediately, or you can cover it and refrigerate overnight, allowing the bread to soak up the custard even more for a richer, more flavorful dish.
Once baked, the casserole becomes golden brown on the top and soft and custardy inside. The combination of blueberries and custard is irresistible, and the dish is even better when served with a dusting of powdered sugar or a drizzle of maple syrup. You can also add a dollop of whipped cream or a handful of extra fresh berries for a little extra indulgence.
Blueberry French toast casserole is an easy, make-ahead breakfast that doesn’t require a lot of hands-on time, making it a great option for busy mornings or special occasions. It’s the perfect balance of sweet, savory, and satisfying, making it a breakfast favorite that everyone will enjoy.

Ingredients
- 1 loaf French bread cut into cubes
- 2 cups blueberries fresh or frozen
- 8 eggs
- 1 cup milk whole or your choice
- 1/2 cup heavy cream
- 3/4 cup sugar
- 1 tablespoon vanilla extract
- 1/2 teaspoon cinnamon
- 1/4 teaspoon nutmeg
- 2 tablespoons butter melted
Instructions
- Grease a 9×13 inch baking dish and place half of the bread cubes in an even layer in the dish.
- Sprinkle a layer of blueberries over the bread cubes.
- In a large bowl, whisk together the eggs, milk, heavy cream, sugar, vanilla extract, cinnamon, and nutmeg.
- Pour half of the egg mixture evenly over the bread and blueberries before adding the remaining bread cubes.
- Add another layer of blueberries and pour the remaining egg mixture over the top evenly.
- Cover the dish with foil and refrigerate for at least 2 hours or overnight for best results.
- Preheat your oven to 350°F (175°C).
- Remove the dish from the refrigerator and let it sit at room temperature for about 20 minutes.
- Cover with foil and bake in the preheated oven for 30 minutes.
- Remove the foil and continue baking for an additional 15 minutes, or until the top is golden and the casserole is set.
- Let it cool for a few minutes before serving warm, optionally with a drizzle of maple syrup.
This was a hit at our brunch! Super easy to make and sooo delicious!
Made it for my kids and they loved it! Blueberries are a hit! 💙
I don’t know… sounds kinda heavy for breakfast. But glad your kids liked it!
That’s awesome! Blueberries really make everything better. 😊
Could you use any bread? I don’t have French bread. Maybe I’ll try with whole wheat?
Yeah, whole wheat should work fine! Just might change the flavor a bit, but should still be tasty.
This was a hit at brunch! Everyone loved it. I’ll definitely make it again.
It was okay, but a little too sweet for my taste. Maybe reduce the sugar next time?
I get what you mean! It was sweet for me too. Maybe try using less sugar next time or a sugar alternative. Just a thought!
Why do you put it in fridge for so long? I just baked it right away. It turned out fine. IDK what the fuss is about.
Honestly, I was skeptical about the blueberries with french toast, but it actually tasted good.
I was the same way! Never thought blueberries would go with French toast, but it was a game changer for sure!
Casseroles are hard, but I think I can do this one. Wish me luck! 🤞
You got this! Casseroles are easier than they seem. Just take your time and follow the steps! 🍽️
Blueberries and French toast? Genius! I added some nuts on top for a crunch, yum!
Blueberries in french toast? Kinda weird, don’t you think? I mean, I like blueberries but not on toast. Gonna pass on this one.
That sounds delish! I love adding nuts too, gives it a whole new texture. Can’t wait to try this recipe!
OMG, this is the best thing I’ve ever made! Perfect for Sunday mornings. 😍
This is super easy to make! A bit too sweet for my taste, but family enjoyed it! 😊
I dunno, seemed a bit too sweet for my taste. Maybe reduce the sugar next time?
Way too many eggs! It tasted like an omelet with bread. Never again!
Nah, I love eggs! More eggs, more protein. Just adjust to your taste next time.
I thought it was great! The eggs made it really fluffy. Maybe you just had a bad batch?
Yum! But why doesn’t it mention topping it with whipped cream?
Blueberries are good for you, right? It’s basically healthy, so I’m calling it a win!
It was okay, but I think the amount of sugar was too much. Next time, I’ll use less sugar for sure.
This was delicious! Perfect for brunch with friends. Will definitely make it again!
Glad you loved it! It’s a crowd-pleaser for sure. Just wait until they try it with maple syrup! 😋
Can I substitute blueberries with strawberries? Asking for a friend! 🍓
Yes! Strawberries would work fine. Just slice ’em up! 🍓
I dunno… Strawberries are sweet, but blueberries make it special. Just sayin’!
I messed up the baking time and it came out soggy. I guess it was my fault.
This is the best! I made it for Mother’s Day and she was so happy. Thanks for sharing!
Sounds good, but isn’t it a bit too rich with all those eggs and cream? I prefer lighter breakfasts.
That’s so sweet! I’m sure your mom loved it. I want to try this for my family too!
Just made this and it was an epic fail for me. My eggs didn’t set at all. Not sure what I did wrong.
This casserole is absolutely delicious! I made it for brunch, and everyone loved it. Will definitely make again!
I was skeptical about using heavy cream. Isn’t that unhealthy? But it turned out great!
Heavy cream is definitely a bit of a guilty pleasure, but it adds such a richness! Glad it worked out for you!
My dog loved it, but I burnt the top! 😂 Next time I will watch it better.
Haha, at least your dog enjoyed it! Maybe next time set a timer so you don’t burn it! 🤣
I tried this recipe and it was way too sweet for my taste. Maybe less sugar next time.
Does it have to be fresh blueberries? I only had frozen ones and they were good too.