Blueberry crumb bars combine the best parts of a pie, crumble, and buttery cookie bar all in one dessert. Featuring a tender crust, juicy blueberry filling, and golden crumb topping, these bars are sweet, slightly tart, and full of homemade comfort.
Perfect for dessert trays, summer gatherings, or an everyday treat, they’re easy to make and even easier to enjoy.
Why You’ll Love This Recipe
- Buttery crust with a crisp crumb topping
- Juicy blueberry filling with bright lemon flavor
- Easy to slice and serve
- Perfect balance of sweet and tart
Ingredients
Crust & Crumble
- 3 cups all-purpose flour
- ½ cup white sugar
- ½ cup brown sugar
- ½ teaspoon baking powder
- ½ teaspoon baking soda
- 1 cup butter, cold and cubed
- 1 egg
Filling
- 2½ cups blueberries (fresh or thawed)
- ¼ cup lemon juice
- 1 teaspoon vanilla extract
- 1 tablespoon cornstarch
Instructions
1. Preheat the Oven
Preheat your oven to 190°C (375°F).
Line or lightly grease a baking dish.
2. Prepare the Crumb Mixture
In a large bowl, combine flour, white sugar, brown sugar, baking powder, and baking soda.
Cut in the cold butter until the mixture becomes crumbly.
Add the egg and mix until the crumbs begin to hold together slightly.
3. Form the Crust
Press about ¾ of the crumb mixture firmly into the bottom of the baking dish to create the crust.
4. Make the Filling
In another bowl, combine blueberries, lemon juice, vanilla extract, and cornstarch.
Mix gently until evenly coated.
5. Assemble the Bars
Spread the blueberry filling evenly over the crust.
Sprinkle the remaining crumb mixture evenly over the top.
6. Bake
Bake for about 40 minutes, or until the top is golden and the filling is bubbling.
7. Cool and Slice
Allow the bars to cool completely before slicing. This helps the filling set properly for clean cuts.
Texture & Flavor
These bars feature:
- A buttery, tender crust
- A juicy blueberry filling
- A crisp, crumbly topping
The lemon juice brightens the berries and balances the sweetness beautifully.
Tips for Best Results
- Use fresh or fully thawed blueberries
- Let the bars cool fully before cutting
- Press the crust firmly for sturdy bars
- Chill slightly before slicing for cleaner edges
How to Store
- Room temperature: Store in an airtight container for up to 2 days
- Refrigerator: Keeps fresh for up to 5 days
- Freezing: Freeze for up to 2 months
- Serving tip: Enjoy chilled or slightly warmed
Blueberry crumb bars are the perfect combination of buttery crumble and juicy berry filling. Easy to make and full of flavor, they’re a comforting dessert that works for any season.
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