Blueberry breakfast casserole is the kind of dish that makes mornings feel special without requiring much effort. Soft bread soaked in a lightly sweetened egg custard, dotted with juicy blueberries, and baked until golden and fluffy—this casserole is pure comfort in every bite.
It’s perfect for holidays, weekend brunches, or busy mornings when you want something homemade and satisfying. Best of all, it can be prepared the night before, making mornings stress-free and delicious.
Why You’ll Love This Blueberry Breakfast Casserole
This recipe is a favorite because it is:
- Easy to make ahead
- Soft, creamy, and lightly sweet
- Packed with fresh or frozen blueberries
- Perfect for feeding a crowd
- Beginner-friendly
- Customizable with simple add-ins
It’s a guaranteed hit with both kids and adults.
Ingredients for Blueberry Breakfast Casserole
Main Ingredients
- 6 cups cubed bread (brioche, challah, or French bread)
- 2 cups blueberries (fresh or frozen)
- 6 large eggs
- 2 cups milk or half-and-half
- ½ cup granulated sugar
- 1 teaspoon vanilla extract
- 1 teaspoon cinnamon
- ¼ teaspoon salt
Optional Topping
- Powdered sugar
- Maple syrup
- Whipped cream
- Lemon zest
How to Make Blueberry Breakfast Casserole
Step 1: Prepare the Baking Dish
Grease a 9×13-inch baking dish. Spread the bread cubes evenly across the bottom of the dish.
Step 2: Add Blueberries
Scatter blueberries evenly over the bread cubes, making sure they’re well distributed.
Step 3: Make the Custard
In a large bowl, whisk together eggs, milk, sugar, vanilla, cinnamon, and salt until smooth.
Pour the mixture evenly over the bread and blueberries, gently pressing the bread down to soak.
Step 4: Chill or Bake
Cover the dish and refrigerate for at least 4 hours or overnight for best texture.
If baking immediately, let it rest for 15 minutes before placing in the oven.
Step 5: Bake Until Golden
Preheat oven to 375°F (190°C). Bake uncovered for 40–45 minutes, until the center is set and the top is lightly golden.
Serving the Blueberry Breakfast Casserole
Allow the casserole to cool slightly before slicing. Dust with powdered sugar or drizzle with warm maple syrup. Serve with fresh fruit or yogurt on the side.
Tips for the Best Breakfast Casserole
- Use day-old bread for better absorption
- Don’t overload with blueberries
- Let it rest before slicing
- Bake uncovered for a golden top
- Serve warm for best flavor
These tips ensure a perfectly soft and creamy result.
Flavor Variations to Try
Make this casserole your own with easy swaps:
- Lemon Blueberry: Add lemon zest to the custard
- Cream Cheese Blueberry: Add small cubes of cream cheese
- Mixed Berry: Use raspberries or strawberries
- Cinnamon Roll Style: Add extra cinnamon and drizzle icing
- Nutty Crunch: Sprinkle sliced almonds on top
What to Serve with Blueberry Breakfast Casserole
This sweet breakfast pairs well with:
- Fresh fruit salad
- Scrambled eggs
- Breakfast sausage or bacon
- Hot coffee or tea
Storage & Reheating Tips
- Store leftovers in the refrigerator for up to 3 days
- Reheat in the microwave or oven
- Cover loosely when reheating to prevent drying
- Not ideal for freezing due to custard texture
Perfect for enjoying leftovers the next day.
Nutrition & Comfort Benefits
This casserole provides:
- Energy from bread and fruit
- Protein from eggs
- Antioxidants from blueberries
- A comforting, satisfying breakfast
For a lighter version, reduce sugar or use low-fat milk.
Frequently Asked Questions
Can I use frozen blueberries?
Yes, no need to thaw—just add directly.
Can I make it dairy-free?
Yes, use plant-based milk.
How do I know it’s done?
The center should be set and no longer liquid.
Final Thoughts
Blueberry breakfast casserole is an easy, comforting dish that brings sweetness and warmth to any morning. With juicy blueberries, soft custard-soaked bread, and a golden baked top, it’s perfect for brunches, holidays, or simple family breakfasts.