Blueberry French Toast Casserole Recipe
If you’ve ever dreamed of a breakfast that feels like a warm hug, then you’re going to adore this Blueberry French Toast Casserole. Imagine cubes of fluffy brioche bread soaked in a rich, cinnamon-spiced custard, studded with bursts of fresh blueberries, and baked to golden perfection. It’s an effortless crowd-pleaser that transforms your morning meal into a celebration, blending sweet, creamy, and fruity flavors with a tender, melt-in-your-mouth texture. Whether it’s for a weekend brunch or a cozy holiday gathering, this Blueberry French Toast Casserole will quickly become your go-to recipe for comfort and joy.

Ingredients You’ll Need
Gathering the right ingredients is the first step to creating a truly memorable casserole. Each one plays a crucial role in building the dish’s irresistible texture and flavor, from the rich custard to the juicy pops of blueberry.
- 6 cups stale brioche bread: Using slightly stale bread soaks up the custard perfectly without turning mushy.
- 2 cups fresh blueberries (or thawed frozen): These add a fresh, tangy burst that balances the sweetness beautifully.
- 6 large eggs: Eggs form the custard base, giving that luscious, creamy binder.
- 2 cups whole milk (or almond milk): Milk lightens the custard and keeps it silky smooth.
- 2 tsp ground cinnamon: Cinnamon warms the flavor profile with a subtle spicy note.
- 1 tbsp pure vanilla extract: Vanilla deepens the sweetness, enhancing every bite.
- 1/4 cup maple syrup: Adds natural sweetness and a hint of caramel complexity.
- Powdered sugar for dusting: A final snowy touch to make the dish look as delightful as it tastes.
How to Make Blueberry French Toast Casserole
Step 1: Prepare the Bread and Oven
Begin by preheating your oven to 350°F (175°C). Grease a baking dish to ensure your Blueberry French Toast Casserole doesn’t stick and carefully spread out the cubed brioche bread evenly. The cubed bread forms the soft, fluffy base, and a well-greased dish helps in easy serving.
Step 2: Whisk Your Custard Mixture
In a mixing bowl, whisk together the eggs, milk, vanilla extract, cinnamon, and maple syrup until everything is smoothly combined. This silky custard bath is what transforms the dry bread cubes into a rich and flavorful centerpiece for your breakfast.
Step 3: Fold in the Blueberries
Gently fold the blueberries into your custard mixture, taking care to keep them whole and intact. This step ensures that you get those gorgeous pockets of juicy blueberry goodness intermixed throughout the casserole.
Step 4: Assemble and Soak
Pour the custard and blueberry mixture evenly over the bread cubes in your baking dish. Press down lightly to make sure every piece gets a good soak. Then cover the dish with plastic wrap and refrigerate for at least 30 minutes. For extra tender results, you can leave it to soak overnight, allowing all the flavors to meld beautifully.
Step 5: Bake to Golden Perfection
Once soaked, remove the plastic wrap and bake the casserole uncovered for about 45 to 50 minutes. Keep an eye out for a golden-brown crust with a firm set—this means your Blueberry French Toast Casserole is ready to come out of the oven and dazzle your taste buds.
How to Serve Blueberry French Toast Casserole

Garnishes
Serve your Blueberry French Toast Casserole fresh from the oven with a generous dusting of powdered sugar for a light sweetness and a pretty finish. A drizzle of pure maple syrup complements the natural blueberry tartness perfectly, and if you really want to treat yourself, add a dollop of whipped cream or a scoop of vanilla ice cream for a decadent contrast.
Side Dishes
This casserole pairs wonderfully with a handful of crispy bacon or sausage links to add a savory balance to the meal. A simple green salad with a citrus vinaigrette can also freshen up the plate and brighten the overall breakfast or brunch experience.
Creative Ways to Present
Impress your guests by serving individual portions in small ramekins topped with fresh berries and a sprig of mint. You can even turn leftovers into indulgent breakfast parfaits by layering pieces of the casserole with Greek yogurt and additional blueberries for a quick and beautiful treat the next day.
Make Ahead and Storage
Storing Leftovers
Once cooled, wrap your leftover Blueberry French Toast Casserole tightly with plastic wrap or store it in an airtight container in the fridge. It will stay fresh for up to 3 days, making it a fantastic make-ahead breakfast for busy mornings.
Freezing
If you want to keep it even longer, this casserole freezes beautifully. Portion it into single servings, wrap individually, and freeze for up to 2 months. Thaw overnight in the fridge before reheating so you can enjoy that homemade taste anytime.
Reheating
Reheat leftovers in a microwave or oven at low heat until warmed through. For a crispier top, reheating in the oven at 325°F for about 15 minutes is ideal. This way, each bite remains just as inviting as the day you baked it.
FAQs
Can I use a different type of bread for Blueberry French Toast Casserole?
Absolutely! While brioche is ideal for its softness and sweetness, you can substitute with challah, Texas toast, or even thick-cut white bread. Just make sure the bread is slightly stale to absorb the custard properly without becoming soggy.
Is it okay to use frozen blueberries instead of fresh?
Yes, frozen blueberries work perfectly. Just be sure to thaw and drain any excess liquid before folding them into the custard so the casserole doesn’t get too watery.
Can I make the Blueberry French Toast Casserole vegan?
With a few substitutions like using plant-based milk, a flax egg or vegan egg replacer, and ensuring the bread is egg-free, you can create a vegan-friendly version. The texture might be slightly different but still delicious!
How long can I soak the casserole before baking?
Soaking for at least 30 minutes is enough to let the bread absorb the custard, but you can soak it overnight in the fridge for even more flavorful and tender results.
Can I prepare this casserole for a crowd?
Definitely! This recipe serves eight, making it perfect for brunch with friends or family. You can easily double the ingredients and bake in a larger casserole dish for bigger gatherings.
Final Thoughts
There’s something truly magical about a Blueberry French Toast Casserole that brings comfort and happiness together on one plate. It’s simple enough to whip up on a lazy morning but special enough to impress anyone who digs in. So go ahead, gather your ingredients, and dive into this deliciously cozy breakfast—you won’t regret it!
