These Blueberry Pie Bars are a delightful twist on a classic dessert, combining the rich, buttery crust with a luscious blueberry filling. In just 40 minutes of prep and another 40 minutes of baking, you’ll have a treat that’s perfect for any occasion. The tender, crumbly base contrasts beautifully with the juicy, sweet-tart berries, creating a harmony of textures and flavors that’s simply irresistible.
Each bite offers a burst of fresh blueberry goodness, balanced by a hint of vanilla and a golden, slightly crisp topping. At 223 calories per serving, these bars are a guilt-free indulgence that’s as satisfying as it is easy to make. Whether you’re sharing with friends or savoring solo, these bars are sure to become a favorite.
Ingredients for Blueberry Pie Bars

- Blueberry Filling:
- 5 cups fresh blueberries (divided into 3 cups and 2 cups)
- ½ cup sugar
- 2 Tablespoons cornstarch
- 1 Tablespoon lemon juice (freshly squeezed for best flavor)
- 1 teaspoon vanilla extract
- 1 Tablespoon butter (unsalted preferred)
- Crust and Crumble Topping:
- 3 cups all-purpose flour
- ½ cup granulated sugar
- ½ cup brown sugar (light or dark, packed)
- 1 teaspoon baking powder
- ½ teaspoon cornstarch
- ½ teaspoon salt
- 1 cup cold butter (cut into small cubes)
- 1 large egg
- 1 teaspoon vanilla extract
- Glaze:
- 1 cup powdered sugar (sifted for smoothness)
- ½ teaspoon vanilla extract
- ½ teaspoon almond extract (optional, but adds a lovely flavor)
- 2 Tablespoons milk (any kind, adjust for desired consistency)
Step-by-Step Instructions
- Prepare the Blueberry Filling:
- Preheat your oven to 350°F (175°C). Lightly grease a 9×13 inch baking dish with butter or non-stick spray.
- In a medium saucepan, combine 3 cups blueberries, ½ cup sugar, 2 Tablespoons cornstarch, and 1 Tablespoon lemon juice. Stir over medium-low heat for about 5-6 minutes, until the blueberries release their juices.
- Increase the heat to medium-high and bring the mixture to a boil, stirring constantly for about 1½ minutes.
- Add the remaining 2 cups blueberries, 1 teaspoon vanilla, and 1 Tablespoon butter. Stir until the butter melts, then remove from heat and let the mixture cool while you prepare the crust.
- Make the Crust and Crumble Topping:
- In a stand mixer or large mixing bowl, combine 3 cups flour, ½ cup sugar, ½ cup brown sugar, 1 teaspoon baking powder, ½ teaspoon cornstarch, and ½ teaspoon salt. Pulse or mix until combined.
- Add the 1 cup cold butter cubes and pulse or mix until the mixture resembles coarse crumbs.
- Add the 1 egg and 1 teaspoon vanilla. Mix until the dough clings together.
- Press half of the mixture evenly into the bottom of the prepared baking dish using your fingers or the back of a spoon.
- Assemble and Bake:
- Spread the cooled blueberry filling evenly over the crust.
- Sprinkle the remaining crumble mixture over the top, covering the filling completely.
- Bake for 35 minutes, or until the topping is golden brown.
- Remove from the oven and let the bars cool completely before adding the glaze.
- Make the Glaze:
- In a small bowl, whisk together 1 cup powdered sugar, ½ teaspoon vanilla, ½ teaspoon almond extract, and 2 Tablespoons milk until smooth.
- Drizzle the glaze over the cooled bars. For cleaner slices, let the glaze set for a few minutes before cutting.
- Serve and Enjoy:
- Slice into bars and serve. Store leftovers in an airtight container at room temperature for up to 2 days or refrigerate for up to 5 days.
Perfect Pairings: Serving Suggestions
These Blueberry Pie Bars are delicious on their own, but they shine even brighter with a scoop of vanilla ice cream or a dollop of whipped cream. For a refreshing twist, serve them with a side of lemon sorbet or a drizzle of honey. They’re also perfect alongside a cup of coffee or tea for a cozy afternoon treat.
Keep It Fresh: Storage and Reheating Tips
Store your bars in an airtight container at room temperature for up to 2 days or in the fridge for up to 5 days. To reheat, pop them in the microwave for 10-15 seconds or warm them in a 300°F oven for 5-7 minutes. For longer storage, freeze the bars (without glaze) in a single layer for up to 3 months—just thaw and glaze before serving.
Mix It Up: Recipe Variations
Swap out the blueberries for raspberries, blackberries, or a mix of your favorite berries for a different flavor profile. For a nutty twist, add ½ cup of chopped almonds or pecans to the crumble topping. If you’re feeling adventurous, try adding a pinch of cinnamon or cardamom to the blueberry filling for a warm, spiced touch.
Time-Saving Hacks
To save time, prepare the blueberry filling a day ahead and store it in the fridge. You can also make the crust and crumble topping in advance—just keep it chilled until you’re ready to assemble. If you’re short on time, skip the glaze or use a store-bought vanilla frosting for a quick drizzle.
Essential Equipment Tips
A stand mixer or food processor makes quick work of the crust and crumble topping, but a pastry cutter or fork works just as well if you’re mixing by hand. Use a silicone spatula to spread the blueberry filling evenly, and a sharp knife dipped in hot water for clean slices. Don’t forget parchment paper for easy removal from the pan!

Blueberry Pie Bars
Ingredients
Blueberry Filling
- 5 cups fresh blueberries, divided
- 1/2 cup sugar
- 2 Tablespoons cornstarch
- 1 Tablespoon lemon juice
- 1 teaspoon vanilla
- 1 Tablespoon butter
Crust and Crumble Topping
- 3 cups flour
- 1/2 cup sugar
- 1/2 cup brown sugar
- 1 teaspoon baking powder
- 1/2 teaspoon cornstarch
- 1/2 teaspoon salt
- 1 cup butter, cold and cut into cubes
- 1 egg
- 1 teaspoon vanilla
Glaze
- 1 cup powdered sugar
- 1/2 teaspoon vanilla
- 1/2 teaspoon almond extract
- 2 Tablespoons milk
Instructions
- Heat oven to 350. Lightly grease a 9 x 13 inch baking dish.
- In a sauce pan combine 3 cups blueberries, sugar, cornstarch, and lemon juice. Stir over medium low heat until the blueberries start to release their own juices. This will take about 5-6 minutes.
- Increase the heat to medium high heat. Bring to a boil, stirring constantly for about 1 1/2 minutes.
- Add in the other 2 cups of blueberries, vanilla, and butter. Keep stirring until the butter is melted.
- Let the blueberry mixture cool as you make the crust.
- In a stand mixer or mixing bowl combine the flour, sugar, brown sugar, baking powder, cornstarch, and salt. Pulse until all is combined.
- Spread the butter chunks over the flour mixture in the bowl. Continue to pulse until it forms into coarse crumbs.
- Add in egg and vanilla and continue to stir until it all clings together.
- Place half of the mixture into the bottom of your prepared pan. Spread evenly with your fingers or the back of a spoon.
- Then spoon the blueberry mixture over the crust and spread evenly over all.
- Bake for about 35 minutes or until the crumb topping is golden.
- Let the bars cool and make the glaze.
- Mix together the powdered sugar, vanilla, almond extract, and milk.
- When all combined drizzle over the cooled bars. (You can drizzle over warm bars, but the drizzle might run together.) Slice and serve.