Blueberry Crumble Bars
Delicious Blueberry Crumble Bars combining the sweet and tangy flavors of fresh blueberries with a crunchy, crumbly topping.
Ingredients
For the Blueberry Filling
- 3.5 cups Fresh Blueberries Use fresh for best flavor.
- 0.5 cup Brown Sugar For the filling.
- 0.25 cup Fresh Lemon Juice Adds acidity.
- 6 teaspoons Cornstarch For thickening.
- 1 teaspoon Vanilla Extract For flavor.
For the Crust and Topping
- 2.5 cups Large Flake Rolled Oats Gives crunch.
- 1.25 cups All-Purpose Flour Base for crust.
- 1 cup Brown Sugar For the crust.
- 0.5 tablespoon Lemon Zest Adds flavor.
- 0.25 teaspoon Salt
- 0.25 teaspoon Cinnamon For warmth.
- Nutmeg A pinch for flavor.
- 1 cup Cold Butter, cubed Important for texture.
Instructions
Prepare the Filling
- Place fresh blueberries, brown sugar, and lemon juice into a medium saucepan and heat on medium-high until boiling.
- Reduce heat and simmer for 10 minutes until blueberries are tender and juicy.
Thicken the Filling
- Mix cornstarch with 2 tablespoons of cold water in a small bowl.
- Add the cornstarch mixture to the blueberries, stirring constantly for 1 to 2 minutes until thickened.
- Remove from heat, stir in vanilla extract and refrigerate until cool.
Make the Crust and Topping
- Preheat the oven to 350°F (175°C). Line an 8-inch baking pan with parchment paper.
- In a large bowl, combine rolled oats, remaining brown sugar, flour, cinnamon, nutmeg, and lemon zest.
- Cut in cold butter until the mixture resembles coarse crumbs.
Assemble the Bars
- Press half of the crumb mixture into the bottom of the prepared baking pan.
- Spread blueberry filling over the crust, then sprinkle remaining crumb mixture on top.
Bake
- Bake for 40 to 45 minutes until the topping is golden brown and filling is bubbling.
Cool and Serve
- Allow to cool completely in the pan before lifting out and slicing into squares.
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Notes
Serve warm with vanilla ice cream for an indulgent treat. Store in an airtight container for up to a week.