Unbelievable Blueberry French Toast Casserole Recipe
Introduction
This Unbelievable Blueberry French Toast Casserole is a delightful breakfast treat that combines fluffy custard-soaked bread with juicy blueberries. Perfect for weekend mornings or special occasions, it’s easy to prepare ahead and bakes up golden and comforting.

Ingredients
- 1 loaf challah or brioche bread, cubed (day-old or stale works best for texture)
- 2 cups fresh blueberries (or frozen, thawed; substitute with strawberries or raspberries if desired)
- 6 large eggs
- 2 cups milk
- 1/2 cup heavy cream
- 1/2 cup maple syrup
- 2 teaspoons vanilla extract
- 1 teaspoon ground cinnamon
- 1 pinch salt
- Powdered sugar for dusting (optional)
- Whipped cream for serving (optional)
Instructions
- Step 1: Preheat your oven to 350°F (175°C) and grease a 9×13 inch baking dish.
- Step 2: Place the cubed bread into the baking dish and scatter the blueberries evenly over the top.
- Step 3: In a large mixing bowl, whisk together the eggs, milk, heavy cream, maple syrup, vanilla extract, cinnamon, and a pinch of salt until fully combined.
- Step 4: Pour the custard mixture evenly over the bread and blueberries, making sure everything is well soaked.
- Step 5: Let the casserole sit for about 30 minutes at room temperature, or preferably refrigerate overnight for deeper flavor.
- Step 6: Bake in the preheated oven for 45-50 minutes, or until the top is golden brown and the custard is set.
- Step 7: Allow to cool slightly before slicing. Serve warm with extra maple syrup and whipped cream if desired.
Tips & Variations
- Using day-old or stale bread helps absorb the custard perfectly without becoming soggy.
- For a crunchy topping, sprinkle some chopped nuts or streusel before baking.
- Swap blueberries for other berries or diced stone fruits to change the flavor.
- Make it vegan by using plant-based milk and egg substitutes, adjusting baking time as needed.
Storage
Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat individual portions in the microwave or oven until warmed through. This casserole also freezes well; thaw in the fridge before reheating.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I prepare this casserole the night before?
Yes, soaking the bread overnight in the custard mixture helps the flavors meld and improves the texture, making it even more delicious.
Can I use frozen blueberries?
Absolutely. Just make sure to thaw and drain them well to avoid excess moisture in the casserole.
PrintUnbelievable Blueberry French Toast Casserole Recipe
This Unbelievable Blueberry French Toast Casserole is a delightful breakfast or brunch dish featuring cubes of challah or brioche bread soaked in a rich custard with fresh blueberries, baked to golden perfection. It’s easy to prepare ahead, allowing the flavors to meld overnight, resulting in a moist, flavorful casserole perfect for gatherings or a special morning treat.
- Prep Time: 15 minutes
- Cook Time: 45-50 minutes
- Total Time: 1 hour to overnight (including soaking time)
- Yield: 8 servings 1x
- Category: Breakfast
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Ingredients
Bread and Fruit
- 1 loaf challah or brioche bread, cubed (Day-old or stale bread works best for texture)
- 2 cups fresh blueberries (or frozen, thawed; feel free to substitute with strawberries or raspberries)
Custard Mixture
- 6 large eggs
- 2 cups milk
- 1/2 cup heavy cream
- 1/2 cup maple syrup
- 2 teaspoons vanilla extract
- 1 teaspoon ground cinnamon
- 1 pinch salt
For Serving (Optional)
- Powdered sugar for dusting
- Whipped cream
Instructions
- Preparation: Preheat your oven to 350°F (175°C) and grease a 9×13 inch baking dish to prevent sticking.
- Assemble Bread and Blueberries: Place the cubed challah or brioche bread evenly in the prepared dish, then scatter the fresh blueberries over the top to distribute the fruit throughout the casserole.
- Prepare 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 the mixture is smooth and well combined.
- Combine and Soak: Pour the custard mixture evenly over the bread and blueberries in the baking dish, ensuring all bread cubes are soaked. For best flavor and texture, let the casserole sit uncovered for about 30 minutes at room temperature, or preferably cover and refrigerate overnight to allow the bread to absorb the custard fully.
- Bake the Casserole: Place the baking dish into the preheated oven and bake for 45 to 50 minutes. Bake until the custard is set, the top is golden brown, and the edges are lightly crisp.
- Cool and Serve: Remove the casserole from the oven and allow it to cool slightly before slicing. Serve warm with a dusting of powdered sugar, additional maple syrup, and a dollop of whipped cream if desired to enhance sweetness and presentation.
Notes
- Day-old or stale challah or brioche works best because it soaks up the custard without becoming mushy.
- You can substitute blueberries with other berries like strawberries or raspberries based on preference.
- Soaking the casserole overnight enhances flavor and gives a better texture but can be baked after 30 minutes soaking.
- Use a 9×13 inch baking dish for best results to ensure even cooking.
- For a dairy-free option, substitute milk and heavy cream with plant-based alternatives, though texture will vary.
Keywords: blueberry French toast casserole, breakfast casserole, baked French toast, brunch recipe, blueberry breakfast bake

