As the sun peeks through the curtains, the scent of sweet, buttery French toast wafts through the air, beckoning everyone to the breakfast table. I’ve discovered an easy way to elevate this morning staple into something truly delightful with my Unbelievable Blueberry French Toast Casserole. This budget-friendly dish not only comes together effortlessly the night before, but it also promises to be a show-stopper at your brunch gatherings. The combination of fresh blueberries nestled in a creamy custard creates the perfect balance of flavors and textures, leaving your morning routine feeling like a treat rather than a chore. Who wouldn’t want to start their day with a slice of this cozy breakfast wonder? Ready to see how simple this indulgent recipe can be? Let’s dive in!

Why is this casserole a must-try?
Simplicity at Its Finest: This Blueberry French Toast Casserole requires minimal effort, making it ideal for anyone who loves delicious flavors without the fuss.
Versatile Ingredients: Feel free to swap blueberries for strawberries or raspberries, letting you customize the dish based on what’s in season or your personal favorites.
Perfect for Meal Prep: Made ahead of time, this casserole fits seamlessly into busy mornings, ensuring you’re ready to tackle the day ahead without sacrificing flavor.
Crowd-Pleasing Delight: With its combination of rich custard and juicy fruit, this dish is set to impress at any brunch gathering or family breakfast.
Texture Harmony: The crispy top beautifully contrasts the soft custardy interior, delivering a comforting experience that leaves everyone craving more.
Elevate your breakfast game with this casserole or check out our Brulee French Toast for another twist on a classic!
Blueberry French Toast Casserole Ingredients
For the Casserole
- Challah or Brioche Bread – Day-old bread enhances texture, providing the perfect base for your casserole.
- Fresh Blueberries (or frozen, thawed) – Offers sweetness and tartness; feel free to use strawberries or raspberries for a fruity twist.
- Large Eggs – Essential for binding the ingredients and creating that creamy custard base.
- Milk – Adds creaminess, but for a dairy-free option, almond or oat milk works well.
- Heavy Cream – Ensures richness; you can substitute with half-and-half for a lighter option.
- Maple Syrup – Sweetens the dish naturally; honey or agave syrup can be used if you prefer.
- Vanilla Extract – A must for depth of flavor and enhancing the overall taste.
- Ground Cinnamon – Adds warmth and a subtle spice, making each bite comforting.
- Salt – A pinch balances the sweetness, making the flavors pop.
- Powdered Sugar (optional) – A lovely garnish to add a touch of sweetness before serving.
- Whipped Cream (optional) – Serve alongside for an indulgent finish that complements the casserole beautifully.
Step‑by‑Step Instructions for Blueberry French Toast Casserole
Step 1: Prepare Oven and Dish
Preheat your oven to 350°F (175°C) and generously grease a 9×13 inch baking dish with butter or cooking spray. This step ensures that your Blueberry French Toast Casserole won’t stick during baking, allowing for easy serving later.
Step 2: Arrange Bread and Berries
Cut your day-old challah or brioche into bite-sized cubes and layer them evenly in the greased baking dish. Then, scatter fresh blueberries generously over the top. This arrangement creates a delightful mix of textures and flavors, with sweet blueberries nestled in between the fluffy bread.
Step 3: Make Custard Mixture
In a large mixing bowl, whisk together the eggs, milk, heavy cream, maple syrup, vanilla extract, ground cinnamon, and a pinch of salt until fully blended. The custard mixture should be smooth and creamy, giving the Blueberry French Toast Casserole its rich flavor profile.
Step 4: Soak Bread
Pour the custard mixture evenly over the bread cubes and blueberries, ensuring every piece is well coated. For the best results, let this mixture sit for 30 minutes at room temperature or refrigerate overnight. This soaking time allows the bread to absorb the custard, creating a perfect texture.
Step 5: Bake
Carefully place the soaked casserole in the preheated oven and bake for about 45–50 minutes. Watch for the top to turn golden brown and the custard to set, making sure it doesn’t burn. A perfectly baked casserole will have a crispy top and soft, custardy interior.
Step 6: Serve
Once baked, let the Blueberry French Toast Casserole cool for about 10 minutes before slicing into squares. Serve warm, topped with a drizzle of additional maple syrup, a dusting of powdered sugar, and whipped cream for an extra indulgent touch.

Make Ahead Options
These Unbelievable Blueberry French Toast Casserole is a fantastic choice for busy home cooks who appreciate the value of meal prep! You can assemble the entire casserole up to 24 hours in advance by following the first four steps—just be sure to refrigerate it after soaking to maintain freshness. This way, the bread absorbs the custard perfectly overnight. When you’re ready to serve, simply pop it in the oven and bake as instructed. If you need longer storage, leftovers can be kept in an airtight container in the refrigerator for up to 3 days, maintaining their delicious flavor. Enjoy the luxury of a homemade breakfast ready with minimal morning effort!
Storage Tips for Blueberry French Toast Casserole
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Fridge: Store any leftover Blueberry French Toast Casserole in an airtight container for up to 3 days. This keeps it fresh and ready for a delicious breakfast treat.
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Freezer: For longer storage, you can freeze individual portions in airtight containers or freezer bags for up to 2 months. Thaw in the fridge overnight before reheating.
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Reheating: To reheat, warm up slices in the microwave for about 30-45 seconds or bake in a preheated oven at 350°F (175°C) for 10-15 minutes until heated through.
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Tip: If reheating from frozen, allow the casserole to thaw in the fridge overnight for the best texture before warming up.
Blueberry French Toast Casserole Variations
Feel free to make this delightful casserole your own by exploring these scrumptious twists!
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Berry Blend: Mix blueberries with strawberries and raspberries for a colorful, fruity explosion. The variety adds depth and a vibrant appearance, making your casserole even more enticing.
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Bread Choice: Swap challah or brioche for whole grain or sourdough for a heartier texture. This subtle change can elevate the flavors and make it feel even more wholesome.
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Spice It Up: Introduce nutmeg or cardamom to the custard for an aromatic twist. Just a hint will transform your Blueberry French Toast Casserole into an exotic breakfast experience.
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Nutty Crunch: Top with slivered almonds or walnuts before baking for a delightful crunch. This added layer of texture complements the soft custard perfectly and brings in another flavor note.
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Dairy-Free Delight: Replace milk and heavy cream with almond or coconut milk for a dairy-free option. You won’t lose any of the rich, creamy texture you crave.
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Flavor Boost: Infuse your custard with orange zest or almond extract for a zesty surprise. It adds brightness and depth, elevating the overall taste.
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Sweet Substitutions: Use honey or maple sugar instead of maple syrup for a different sweetness profile. This can subtly change the flavor and offers a unique twist on sweetness.
For more breakfast ideas, consider trying our Crazy Good Casserole or our delightful French Butter Cake. Happy cooking!
What to Serve with Unbelievable Blueberry French Toast Casserole
As you gather around the breakfast table, imagine the warmth of this creamy, sweet casserole being accompanied by delightful sides that elevate your meal experience.
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Crispy Bacon: The salty, crunchy bacon provides a fantastic contrast to the sweet, buttery casserole, creating a balanced bite that everyone will love.
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Fresh Fruit Salad: Light and refreshing, a medley of seasonal fruits will brighten your plate and offer a burst of juicy flavor alongside every slice.
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Greek Yogurt Parfait: Serve with a dollop of velvety Greek yogurt layered with honey and nuts for a creamy complement that enhances the casserole’s richness.
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Maple Syrup Drizzle: A classic partner, adding pure maple syrup over the casserole enhances the sweetness while bringing a touch of warmth to each bite.
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Coffee or Tea: A steaming cup of coffee or herbal tea can round out your breakfast beautifully, providing a comforting beverage to sip while enjoying your meal.
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Spinach and Feta Omelet: For added protein, a fluffy omelet packed with fresh spinach and tangy feta offers a savory contrast that rounds out the entire experience perfectly.
Taking the time to create a cohesive breakfast spread transforms your morning into a cherished ritual, making it an occasion worth savoring.
Expert Tips for Blueberry French Toast Casserole
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Use Stale Bread: For the best texture, use day-old challah or brioche; fresh bread tends to become soggy.
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Soaking Time Matters: Let the bread sit in the custard mixture overnight or at least 30 minutes to ensure each bite is custard-infused.
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Watch the Baking: Oven temperatures vary, so keep an eye on the casserole; it should be golden but not burnt on top when done.
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Add Fruit Variations: Try substituting blueberries with strawberries or raspberries for a delightful twist on your blueberry French toast casserole.
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Store Properly: If you have leftovers, store them in an airtight container in the fridge for up to 3 days; reheat for a quick breakfast treat.

Blueberry French Toast Casserole Recipe FAQs
Can I use different fruits for this Blueberry French Toast Casserole?
Absolutely! While blueberries are a delightful choice, you can easily swap them for strawberries or raspberries. Just make sure to adjust the amount based on the sweetness of the fruit you choose. For a vibrant twist, mixing a couple of different fruits can add both flavor and color to your casserole!
How do I store leftover Blueberry French Toast Casserole?
To keep your delicious leftovers fresh, store them in an airtight container in the fridge for up to 3 days. This way, you can enjoy a flavorful breakfast treat without any waste. When you’re ready to indulge again, simply reheat in the microwave for about 30–45 seconds or pop it in a preheated oven at 350°F (175°C) for 10-15 minutes until warmed through.
Can I freeze the Blueberry French Toast Casserole?
Yes! For longer storage, freeze individual portions of the casserole in airtight containers or freezer bags. It can last up to 2 months in the freezer. When you’re ready to enjoy, allow the portion to thaw overnight in the fridge. For best results, reheat to ensure it’s warm throughout—just remember, you might need to add a couple of extra minutes in the oven if it’s still a bit chilly!
Why is my casserole too soggy?
Sogginess often occurs when the bread isn’t stale enough or if it hasn’t soaked long enough in the custard mixture. I recommend using day-old bread to achieve that perfect texture. If you’re short on time, let it soak at room temperature for at least 30 minutes—but refrigeration overnight will definitely give you the best custardy outcome without sogginess!
Is this casserole suitable for pets or those with allergies?
The Blueberry French Toast Casserole contains ingredients that may not be suitable for pets, especially eggs and dairy. As for allergies, you can make substitutions—using almond milk instead of regular milk makes it dairy-free, and you can omit the powdered sugar garnish if sugar isn’t suitable for you. Always double-check for any specific allergies before serving, especially for guests!
What are some variations to the recipe?
Wonderful question! You can play around with different types of bread like sourdough or even whole grain for a healthier twist. Additionally, consider adding nuts like pecans or walnuts for crunch, or spices such as nutmeg or allspice to enhance the flavor profile. The more the merrier in creativity with this dish!

Blueberry French Toast Casserole
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and generously grease a 9x13 inch baking dish with butter or cooking spray.
- Cut your day-old challah or brioche into bite-sized cubes and layer them evenly in the greased baking dish. Scatter fresh blueberries generously over the top.
- In a large mixing bowl, whisk together the eggs, milk, heavy cream, maple syrup, vanilla extract, ground cinnamon, and a pinch of salt until fully blended.
- Pour the custard mixture evenly over the bread cubes and blueberries, ensuring every piece is well coated. Let this mixture sit for 30 minutes at room temperature or refrigerate overnight.
- Carefully place the soaked casserole in the preheated oven and bake for about 45-50 minutes, until the top is golden brown and the custard is set.
- Once baked, let the casserole cool for about 10 minutes before slicing into squares. Serve warm, topped with maple syrup, powdered sugar, and whipped cream.

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