Introduction to Blueberry French Toast Casserole
If you’re looking for a delightful breakfast dish that feels special but doesn’t require hours in the kitchen, Blueberry French Toast Casserole is your new best friend. This dish combines the comforting flavors of breakfast favorites—like fluffy French toast and juicy blueberries—into a streamlined casserole that you can prepare in advance. Perfect for brunch gatherings or even cozy family breakfasts, this casserole allows you to enjoy time with loved ones instead of slaving over the stove.
Why you’ll fall in love with this casserole
Just imagine slicing into a warm, golden-brown casserole topped with a buttery streusel, releasing that heavenly aroma of cinnamon and vanilla throughout your kitchen. The blueberries add a burst of sweetness while providing a beautiful contrast against the rich egg custard.
One of the best parts? You can customize it! Feel free to swap in other berries or fruits according to the season or your personal taste. Plus, this dish is easy to make ahead—just let it soak overnight in the fridge, and bake it fresh in the morning. It’s an effortless way to treat yourself and impress your guests!
Learn more about the basics of breakfast casseroles and discover your new favorite recipe!

Ingredients for Blueberry French Toast Casserole
Creating a delicious blueberry French toast casserole starts with selecting the right ingredients. Here’s what you’ll need to make this indulgent breakfast dish come together beautifully.
Essential Ingredients for the Base
- French bread (12–14 ounces): You can also use sourdough, brioche, or challah for a richer flavor.
- Fresh or frozen blueberries (1 cup): These little gems add natural sweetness and a burst of flavor.
- Large eggs (8): They’re crucial for that fluffy texture we all love.
- Whole milk (2 and ¼ cups): Full-fat milk enhances creaminess.
- Ground cinnamon (½ teaspoon): This spice brings warmth and comfort.
- Light brown sugar (¾ cup): It caramelizes beautifully during baking.
- Pure vanilla extract (1 tablespoon): Enhances overall flavor and aroma.
Ingredients for the Streusel Topping
- Brown sugar (⅓ cup): Choose either light or dark for a deeper taste.
- All-purpose flour (⅓ cup): This will help create a crumbly texture.
- Ground cinnamon (½ teaspoon): A sprinkle of cinnamon ensures a warm, inviting aroma.
- Unsalted butter (6 tablespoons), cold and cubed: Butter is the star of this topping, lending richness.
- Optional toppings: Consider adding extra blueberries, maple syrup, or a dusting of confectioners’ sugar for a finishing touch.
Gathering these ingredients will make the cooking process seamless and enjoyable. Happy baking!
Step-by-Step Preparation for Blueberry French Toast Casserole
Creating a delicious blueberry french toast casserole is easier than you might think! With a little bit of prep and love, you'll have a dish that impresses friends and family alike. Let’s dive into the steps!
Prepping the Baking Pan and Bread
Begin by greasing a 9×13-inch baking pan with either butter or nonstick spray. This prevents sticking and makes cleaning up a breeze. Next, choose your favorite bread—French, sourdough, brioche, or challah work beautifully for this dish. Slice the loaf, then cut it into one-inch cubes. Spread these fluffy bread cubes evenly in the prepared pan, and sprinkle one cup of fresh or frozen blueberries over the top. Set this aside as you move on to the next step.
Whisking the Egg Custard
In a large bowl, gather 8 large eggs, 2 and ¼ cups of whole milk, ½ teaspoon of ground cinnamon, ¾ cup of packed light brown sugar, and 1 tablespoon of pure vanilla extract. Whisk these ingredients together until you see no lumps of brown sugar. This custard mixture is what makes your blueberry french toast casserole so rich and delicious! Once mixed thoroughly, pour it evenly over the cubed bread. For the best flavor, cover the pan tightly and pop it in the refrigerator to soak for anywhere from 3 hours to 24 hours, with overnight soaking being the most recommended.
The Assembly Process
After the bread has had plenty of time to soak up that tasty custard, it’s time to preheat your oven to 350°F (177°C). Once preheated, take that dish out of the fridge. This is your moment to prepare for the topping while the oven is warming up.
Preparing the Streusel Topping
In a medium bowl, combine ⅓ cup of packed light or dark brown sugar, ⅓ cup of all-purpose flour, and ½ teaspoon of ground cinnamon. Then, add 6 tablespoons of cold, cubed unsalted butter. Using a pastry blender or two forks, cut the butter into the dry ingredients until the mixture resembles small crumbs. This delicious streusel topping will add a delightful crunch to your casserole.
Baking the Casserole
Sprinkle that teeming streusel topping over the soaked bread and blueberries. Now, slide the pan into your preheated oven and bake for 45–55 minutes, or until the top is golden brown. For a softer texture, check around the 45-minute mark. Once out, serve warm, and don’t forget the optional toppings like extra blueberries, maple syrup, or a dusting of confectioners’ sugar for an added sweet touch.
Now you’re all set to create a delightful blueberry french toast casserole that will have everyone coming back for seconds! Enjoy your delicious creation!

Variations on Blueberry French Toast Casserole
Alternative fruits you can use
While this blueberry French toast casserole is a crowd-pleaser, feel free to get creative! Consider swapping out the blueberries for other fruits such as:
- Strawberries: Their sweet and juicy flavor pairs perfectly.
- Raspberries: Add a tartness that balances the sweetness.
- Blackberries: For a slightly more robust berry flavor.
- Fall favorites: Try using cranberries or thinly sliced apples and pears for a seasonal twist.
You can mix and match to find your perfect combination, experimenting with fresh and frozen varieties alike.
Variations for dietary restrictions
If you're looking to cater to specific dietary needs, this casserole adapts beautifully. Here are some ideas:
- Gluten-Free: Substitute with gluten-free bread, ensuring it’s a sturdy loaf for the best texture.
- Dairy-Free: Replace the whole milk with almond, soy, or oat milk, and opt for a dairy-free butter alternative.
- Vegan: Use flax eggs (3 tablespoons ground flaxseed mixed with 9 tablespoons water) and a plant-based milk option, while maintaining your choice of bread.
With a few tweaks, everyone can enjoy a slice of this delightful blueberry French toast casserole!
Cooking Tips and Notes for Blueberry French Toast Casserole
Make-ahead options
You can easily prepare your blueberry French toast casserole in advance for those busy mornings. Simply assemble the dish, cover it tightly with plastic wrap, and refrigerate for 3 to 24 hours. If you want to go even further, prepare the topping ahead and keep it in the fridge. This will save you time when you're ready to bake!
Storing and reheating leftovers
After enjoying your delicious casserole, store the leftovers in an airtight container in the fridge for up to 3 days. To reheat, pop individual portions in the microwave or warm the whole dish in a 350°F oven for about 20-25 minutes. It’s a comforting treat that tastes just as good the next day!

Serving Suggestions for Blueberry French Toast Casserole
Toppings and Pairings
Elevate your blueberry French toast casserole experience with delightful toppings! Consider drizzling warm maple syrup over the top, or sprinkling with confectioners' sugar for a sweet finish. Fresh, additional blueberries or a generous dollop of whipped cream adds a creamy contrast. For a savory touch, pair with crispy turkey bacon or chicken ham, which balances the sweetness beautifully.
Ideal Occasions for Serving
This versatile dish is perfect for lazy weekend brunches, holiday family gatherings, or any occasion that calls for a festive meal. Imagine serving it up for Mother’s Day or a cozy winter morning with friends. Whatever the occasion, your blueberry French toast casserole will surely impress!
Time Breakdown for Blueberry French Toast Casserole
Preparation time
Getting started on your blueberry french toast casserole takes around 20 minutes. This includes slicing the bread and combining the egg mixture.
Refrigeration time
For the best results, let the casserole chill in the fridge for at least 3 hours, but overnight is ideal to maximize flavor.
Baking time
Once baked, you'll need 45 to 55 minutes at 350°F (177°C). You’ll know it’s done when it’s golden-brown on top.
Ready to savor this delicious dish? Enjoy it hot, drizzled with syrup or a sprinkle of powdered sugar!
Nutritional Facts for Blueberry French Toast Casserole
When indulging in a slice of blueberry french toast casserole, it's helpful to know what you're savoring. Here's a quick look at its nutritional aspects:
- Calories: Approximately 300 calories per serving, making it a satisfying breakfast option.
- Sugar content: With around 12 grams of sugar, the sweetness predominantly comes from the blueberries and brown sugar.
- Protein: Each serving provides a hearty 10 grams of protein, thanks to the eggs and milk.
Understanding these nutritional facts can help you enjoy this delicious dish while keeping your dietary goals in check. Want to dive deeper? Check out this resource on healthy breakfast choices.
FAQs on Blueberry French Toast Casserole
Can I use stale bread for the casserole?
Absolutely! In fact, using stale bread is ideal for a blueberry French toast casserole. It absorbs the egg mixture better, giving you that perfectly custardy texture. If you don't have stale bread on hand, simply cube fresh bread and toast it lightly in the oven at 300°F for about 10 minutes to achieve a similarly great result.
How can I make it gluten-free?
To make a delicious gluten-free version of the blueberry French toast casserole, just substitute your favorite gluten-free bread. There are fantastic options available, such as gluten-free brioche or sourdough. Ensure that any other ingredients you use, like the brown sugar and vanilla extract, are also labeled gluten-free.
What’s the best way to reheat it?
Reheating is a breeze! Simply place your leftover casserole in a preheated oven at 350°F until warmed through, about 15-20 minutes. You can cover it with foil to prevent it from drying out. Enjoy it warm, topped with extra blueberries or a drizzle of maple syrup for an indulgent treat!
Conclusion on Blueberry French Toast Casserole
In summary, this blueberry French toast casserole is a delightful dish worth every bite. It's perfect for brunches, easy to prepare, and can even be made ahead of time for those busy mornings. Treat yourself and your loved ones to this delicious meal—it’s sure to impress!

Blueberry French Toast Casserole
Equipment
- 9×13 inch baking pan
- Mixing Bowl
- Whisk
Ingredients
Main Ingredients
- 1 loaf French bread sourdough, brioche, or challah
- 1 cup blueberries fresh or frozen
- 8 large eggs
- 2.25 cups whole milk
- ½ teaspoon ground cinnamon
- ¾ cup light brown sugar packed
- 1 Tablespoon pure vanilla extract
Streusel Topping
- ⅓ cup brown sugar packed, light or dark
- ⅓ cup all-purpose flour spooned & leveled
- ½ teaspoon ground cinnamon
- 6 Tablespoons unsalted butter cold and cubed
Instructions
Preparation
- Grease a 9×13-inch pan with butter or nonstick spray. Slice, then cut the bread into cubes, about 1 inch in size. Spread cubes into the prepared baking pan and top evenly with blueberries. Set aside.
- Whisk the eggs, milk, cinnamon, brown sugar, and vanilla together until no brown sugar lumps remain. Pour over the bread. Cover the pan tightly and refrigerate for 3–24 hours. Overnight is best.
- Preheat oven to 350°F (177°C). Remove pan from the refrigerator.
- Prepare the topping: Whisk the brown sugar, flour, and cinnamon together in a medium bowl. Cut in the cubed butter with a pastry blender or two forks. Sprinkle the topping over the soaked bread.
- Bake for 45–55 minutes or until golden-brown on top. I usually bake it for 45 minutes because I like it softer.
- Serve warm. Cover leftovers tightly and store in the refrigerator for 2–3 days.





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