Wild Blueberry Crumble Bars
Ingredients
- 1lemon
- 3 cfrozen wild blueberries
- 3 tbspgranulated sugar
- 1 tbspcornstarch
- 1 tspvanilla extract
- ½ clight brown sugar
packed
- ½ cgranulated sugar
- 2 ¾ call-purpose flour or 1-to-1 gluten-free baking flour
spooned and leveled
- ½ tspkosher salt
- 1 tspbaking powder
- 1 cunsalted butter
melted and cooled
Directions
Wild blueberry filling
- 1
First, zest the lemon and set aside the zest.
- 2
In a medium saucepan combine the blueberries first with the sugar and cornstarch, and then juice of the lemon. Stir to coat. Place over medium heat and stir occasionally with a wooden spoon or rubber spatula.
- 3
After about 5 to 8 minutes, the mixture will start to steam and bubble. Stir continuously for another 5 minutes or until the mixture is thickened and glossy, like pie filling.
- 4
Remove from heat and mix in the lemon zest and vanilla. Pour into a wide and shallow dish and allow to cool in the refrigerator while we make the crumble.
Crumble
- 1
Preheat the oven to 350F and grease the inside of a 9×13 baking dish. Line the bottom and all sides with parchment paper.
- 2
Add the brown sugar, sugar, flour, salt and baking powder to a large bowl. Use your hands to mix and toss together, breaking up any brown sugar lumps as you go.
- 3
Use a rubber spatula to stir in the butter. Spend a good couple minutes on this to ensure the mixture is evenly hydrated and no dry patches remain. It should look moist but very crumbly.
- 4
Scoop about ⅔ of the crumble into the pan and press into a thin and even layer all the way to the edges.
- 5
Spread the blueberry filling on top, also in a thin and even layer. Then sprinkle the remaining crumble on top, taking care to ensure the blueberry is evenly covered.
- 6
Bake for 35 to 40 minutes or until lightly golden on top.
- 7
Allow to cool at room temperature for about 15 minutes, then transfer to the refrigerator to cool completely, about 45 minutes.
- 8
Then remove from the pan and slice into 12 large bars or 24 regular bars. Enjoy!
Wild Blueberry Crumble Bars
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Ratings & Reviews
Based on 7 ratings
Rating Breakdown
About this Recipe
Craving a dessert that's bursting with juicy berry flavor and comes together effortlessly? These Wild Blueberry Crumble Bars are your answer, offering a perfect blend of sweet and tart in every bite. They’re a delightful treat that tastes gourmet but is surprisingly simple to bake.
The beauty of this recipe lies in its simplicity and efficiency. It leverages frozen wild blueberries for convenience and intense flavor, meaning you can enjoy these year-round without worrying about berry seasonality. The use of melted butter in the crumble base makes for an incredibly easy-to-mix dough that yields perfectly thin layers of buttery goodness.
Prepare for a delightful contrast of textures that makes these bars truly special. You'll experience a tender, buttery crumble both on the base and as a topping, sandwiching a vibrant, jammy lemon blueberry filling. The small size of the wild blueberries ensures an even distribution of fruit and an intensely concentrated berry flavor, beautifully brightened by the zest and juice of fresh lemon. The overall experience is one of comforting sweetness with a pleasant, subtle tang.
Customization & Variations
While delicious as written, you can easily adapt these Wild Blueberry Crumble Bars to suit your needs. For those avoiding gluten, the recipe explicitly calls for 1-to-1 gluten-free baking flour as an alternative to all-purpose flour, making this a versatile treat. You can also adjust the amount of lemon for a brighter or subtler citrus note, depending on your preference.
These Wild Blueberry Crumble Bars are ideal for picnics, potlucks, or simply as a delightful afternoon treat with a cup of coffee. Their portable nature makes them a crowd-pleaser for any gathering.