Ingredients
The following ingredients have 15 Servings
- 3 cups all-purpose flour
- ½ cup granulated sugar
- ½ cup brown sugar
- 1 teaspoon baking powder
- ½ teaspoon salt
- 1 cup butter (unsalted, cold and cut in cubes)
- 1 large egg
- 2 teaspoons vanilla extract
- 5 cups fresh blueberries
- 1 tablespoon cornstarch
- ½ cup sugar
- 2 tablespoons lemon juice (freshly squeezed)
Instruction
- Preheat the oven and prep the pan: Preheat your oven to 375°F (190°C). Then spray a 9x13-inch baking pan with cooking spray and line it with parchment paper that is hanging off the sides so that the bars are easy to lift out once baked.
- Begin the crumble dough: Whisk together the flour, granulated sugar, brown sugar, baking powder, and salt in a large mixing bowl. Now, add the cold cubed butter and use a pastry cutter or fork to blend until it’s well combined and crumbly. The butter must be cold for this step.
- Add the egg and vanilla: In a small bowl, whisk the egg together with the vanilla extract. Then add it to the flour mixture and blend it in using a pastry cutter, wooden spoon or fork until the dough is crumbly. Try not to over blend. The butter needs to stay chunky for the crumble to have texture.
- Form the crust: Transfer half of the dough to the prepared baking pan and press it firmly into the bottom to form the crust of the bars.
- Make the blueberry filling: In another bowl, combine the fresh blueberries, cornstarch, lemon juice, and ½ cup of sugar in a separate bowl.
- Add the blueberry layer: Evenly spread the blueberry mixture over the bottom crust layer in the baking pan.
- Top with the crumb layer: Sprinkle the remaining crumb mixture evenly over the blueberry mixture using your fingers to crumble it up if necessary.
- Bake the blueberry bars: Put the baking pan into the oven and bake the bars for about 45 minutes to an hour or until the top is golden brown in color.
- Cool and serve: Once baked, allow the bars to completely cool in the pan before lifting them out to cut into blueberry squares to serve.
