Blueberry French Toast Casserole
- By Amy Dong
- Updated Jun. 25, 2026
Our Blueberry French Toast Casserole is a make-ahead breakfast casserole with cubed French bread, cream cheese, fresh blueberries, lemon curd, and a rich egg custard — all assembled the night before and baked until golden and puffy. Your family will love the warm blueberry-lemon sauce for drizzling.
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Amy’s Notes
I love being able to assemble this Blueberry French Toast Casserole the night before and wake up knowing a delicious brunch is already halfway done. The lemon-blueberry combination keeps it bright and fresh; the warm blueberry sauce is phenomenal.
- Bright, Fresh Flavor: Lemon curd, fresh lemon zest, and sweet blueberries create a sunny flavor combination that brings every bite to life.
- Creamy, Custardy Texture: Overnight-soaked bread and pockets of cream cheese bake into a rich, soft casserole with perfectly golden edges.
- Overnight Convenience: Since the casserole rests in the fridge overnight, all you have to do in the morning is pop it in the oven, similar to our Apple French Toast Casserole.
- Homemade Blueberry Sauce: The warm blueberry-lemon sauce is sweet, glossy, and absolutely irresistible. I often make extra to drizzle over pancakes and waffles later in the week.
- Perfect for Brunch Gatherings: Whether it’s a holiday breakfast or a lazy weekend brunch, this casserole feeds a crowd and always disappears quickly, similar to our Best French Toast Casserole Recipe.
Key Recipe Ingredients
- Hearty French Bread – A large loaf cut into cubes gives the casserole structure and soaks up the custard without turning soggy. Day-old bread works best, but any sturdy French or Italian loaf will do.
- Cream Cheese – Softened cream cheese adds a creamy, rich layer between the bread cubes. It melts into the casserole for a smooth, slightly tangy texture.
- Lemon Curd – Brings bright, citrusy flavor that pairs perfectly with the blueberries. Use store-bought or homemade lemon curd.
- Fresh Blueberries – Add juicy bursts of sweetness throughout the casserole. Fresh berries hold their shape best, but frozen can work for the sauce.
- Eggs – Bind the ingredients together and create the custard base that gives the casserole its soft, rich texture.
- Whole Milk – Keeps the custard creamy and smooth. You can substitute half-and-half for a richer result or 2% milk for a lighter version.
- Lemon Zest – Fresh zest from two lemons brightens the entire dish and enhances the lemon curd flavor.
Substitutions And Variations
Here are some of our favorite substitutions and variations:
- Berry Options: I love using fresh blueberries, but you can swap in raspberries, blackberries, or chopped strawberries. Just keep the total amount about the same so the custard sets right.
- Bread Choices: I usually go with hearty French bread, but brioche or challah make the casserole extra soft and rich. Use what you have on hand, as long as it’s sturdy enough to soak overnight.
- Topping Ideas: I like to sprinkle sliced almonds or chopped pecans on top before baking for a little crunch. A dusting of powdered sugar after baking looks pretty and adds a touch of sweetness.
Step-By-Step Recipe Instructions
- Beat cream cheese and lemon curd until smooth.
- Whisk together eggs, milk, vanilla, and maple syrup.
- Add half the bread cubes to the baking dish.
- Spread cream cheese mixture over bread and top with blueberries.
- Add remaining bread cubes, pour over egg mixture, chill overnight, and bake.
- To make the sauce, whisk together sugar, water, cornstarch, and lemon juice.
- Add blueberries and cook until thickened.
- Drizzle sauce over casserole and serve.
For full list of ingredients and instructions, see recipe card below.
How To Prep Ahead
Take a look at our best prep-ahead strategies for this recipe:
- Assemble the Night Before: I like to put the whole casserole together the evening before. Once the bread is soaked in the custard, cover the dish tightly and refrigerate overnight. The bread absorbs everything, and the entire dish bakes up wonderfully the next morning.
- Make the Sauce Early: The blueberry sauce keeps beautifully in the fridge for up to three days. Let it cool completely, then store it in an airtight container. When you’re ready to serve, warm it gently on the stove or in the microwave until pourable.
- Can you freeze it? You can freeze the baked casserole. Let it cool completely, wrap it tightly, and freeze for up to one month. Thaw overnight in the fridge and reheat covered in a 325°F oven until warmed through. Freeze sauce separately from baked casserole.
Video: Watch Us Make This Recipe
Blueberry French Toast Casserole
Ingredients
For the French Toast:
- 14-16 ounces hearty French bread, cubed, about 12 cups worth
- 12 ounces whole cream cheese, softened
- 5 tablespoons lemon curd, homemade or store bought
- 1 ½ cups fresh blueberries
- 12 large eggs, beaten
- 2 cups whole milk
- 1 teaspoon vanilla extract
- ⅓ cup pure maple syrup
- 2 lemons, zested
For the Sauce:
- 1 cup granulated sugar
- 2 tablespoons cornstarch
- ¾ cup water
- ¼ cup lemon juice, freshly squeezed
- 1 ½ cups blueberries, fresh or frozen
Instructions
- Grease a 9×13 baking dish. Place half of the bread cubes evenly in the dish.
- In a stand mixer fitted with paddle attachment, blend softened cream cheese together with lemon curd on medium high until fully mixed and soft.
- Spread mixture evenly over the bread cubes. Sprinkle fresh blueberries evenly over the cream cheese mixture. Top with remaining bread cubes evenly.
- In a large bowl, blend together the eggs, milk, vanilla extract, and maple syrup. Slowly and evenly pour egg mixture over entire casserole, ensuring that all bread cubes are soaked. Cover tightly and chill overnight.
- Remove dish from fridge and let sit at room temp while you preheat the oven. Preheat oven to 350F with rack on lower middle position. Loosely cover with foil and bake 30 minutes. Uncover and bake another 30 minutes or until center is firm and top is quite puffy and golden brown.
- Sprinkle top with lemon zest. Let rest at room temp 15-20 minutes to allow custard to set before serving. Meanwhile, make the sauce.
- To make the sauce, in a saucepan, whisk together the sugar, cornstarch, water, and lemon juice. Be sure cornstarch is completely dissolved. Bring to a low boil.
- Add the blueberries. Continue to stir on low boil until syrup turns thick and a rich purple. Some berries will burst.
- Drizzle warm sauce over entire dish, reserving about half of the sauce for serving at the table.
Notes
- Use day-old bread. Slightly stale bread absorbs the custard better and keeps the casserole from turning soggy.
- Soften the cream cheese fully. Let it sit at room temperature or microwave in short bursts so it blends smoothly with the lemon curd.
- Pour the custard slowly. Make sure every bread cube gets coated for even texture throughout the casserole.
- Use fresh blueberries in the casserole. They hold their shape better than frozen and won’t add extra moisture.
- Don’t skip the lemon zest. It adds a bright finish that balances the sweetness of the custard and sauce.
- Bake covered first, then uncover. This helps the casserole cook evenly before the top turns golden and crisp.
- Let it rest before serving. A short cooling time helps the custard set and makes slicing easier.
- Double the sauce if you love extra topping. It keeps well in the fridge and tastes great on pancakes or waffles later.
- This recipe is part of our Breakfast Casserole Recipes Collection.
- We love serving this delicious casserole with other brunch favorites such as our Fluffy Buttermilk Pancakes and Fluffy Belgian Waffles.
Nutrition (per serving)
What To Serve with Blueberry French Toast Casserole
Breakfast Favorites
- We love serving this Blueberry French Toast Casserole as the centerpiece of a special breakfast or brunch alongside Fluffy Buttermilk Pancakes and Fluffy Belgian Waffles.
- For a bigger spread, add Homemade Cinnamon Rolls or Pumpkin Pancakes and let everyone choose their favorite breakfast treat.
Savory Brunch Pairings
- The sweet blueberry and lemon flavors pair beautifully with savory dishes like Crustless Quiche or Easy Breakfast Quiche.
- For a heartier brunch menu, serve it alongside Bacon Bread or Overnight Breakfast Casserole to balance the sweetness.
Frequently Asked Questions
Yes, but only for the sauce. Frozen blueberries tend to release more liquid, which can make the casserole soggy if used inside. For the best texture, stick with fresh blueberries in the casserole and save frozen ones for the sauce.
You can, but replace it with something that still adds creaminess — ricotta or mascarpone both work well. Ricotta gives a lighter texture, mascarpone is richer and closer to cream cheese. If you skip it entirely, the casserole will still taste good but you’ll lose that creamy layer.
Yes. Use a dairy-free cream cheese, swap the whole milk for full-fat oat milk or coconut milk, and skip the lemon curd or use a dairy-free version. The texture will be slightly different but it still bakes up well. Just make sure whatever milk substitute you use has enough fat — skim or watery alternatives won’t give you the same custard
It’s highly recommended. The overnight rest allows the bread to fully absorb the custard, giving you a soft, rich texture after baking. If you’re short on time, let it soak for at least 2–3 hours before baking.
A hearty French loaf or similar crusty bread holds up beautifully to the custard. Avoid soft sandwich bread, which tends to fall apart after soaking overnight.
You can, but the lemon curd adds a lovely brightness that balances the richness of the cream cheese and custard. If you don’t have any, try a spoonful of lemon marmalade or a bit of extra lemon zest for flavor.
You can, but let it soak for at least 2–3 hours at minimum. The bread needs time to absorb the custard or you’ll end up with a soggy bottom and dry top. Overnight is really the better option if you can plan ahead, as the texture is noticeably better.
Store leftovers in an airtight container in the fridge for up to 3–4 days. Reheat individual portions in the microwave or warm the whole dish in a 325°F oven until heated through. The blueberry sauce can also be stored separately and reheated before serving.
More to Bake and Eat
- Strawberry Cream Cheese French Toast Bake – This Strawberry Cream Cheese French Toast Bake is easily prepped the night before; it feeds a crowd and is delicious any time of year!
- Blueberry Coffee Cake – This easy blueberry coffee cake is super tender and moist, with a light crispy topping. This blueberry cake is easy and can be made ahead.
- Blueberry Crumb Bars – I keep this Blueberry Crumb Bars recipe handy all summer. Juicy filling, buttery crust, and a cinnamon crumble that makes them extra special.
- Healthy Blueberry Crumble – This Healthy Blueberry Crumble is my kind of easy treat. One bowl, wholesome ingredients, and it doubles as dessert or breakfast.