Ingredients
Equipment
Method
Step-by-Step Instructions
- Preheat your oven to 350°F (175°C) and grease a 9x13-inch baking pan.
- In a mixing bowl, whisk together the all-purpose flour, granulated sugar, and salt until well combined.
- Cut in the cold, cubed butter using a pastry cutter until the mixture resembles coarse crumbs.
- Add the egg yolk and ice water, mixing just until a soft dough forms.
- Press this dough evenly into the prepared pan and pre-bake for 15-20 minutes, or until golden brown.
- In a saucepan over medium heat, combine the fresh blackberries and granulated sugar. Cook for 5-7 minutes until bubbly.
- Remove from heat, then stir in the lemon juice and cornstarch, mixing until thickened, about 1-2 minutes.
- Allow the blackberry filling to cool slightly while you prepare the topping.
- In a large bowl, whisk together the light brown sugar, baking powder, and flour, then cut in the cold butter until crumbly.
- Add in the large egg and vanilla extract, stirring until well blended.
- Gently fold in the shelled pistachios.
- Pour the blackberry filling over the pre-baked crust, spreading it evenly.
- Sprinkle the pistachio topping over the blackberry layer and press down gently.
- Bake for 30-35 minutes until topping is golden brown and filling is bubbly.
- Allow the bars to cool completely in the pan for 1-2 hours before slicing.
Nutrition
Notes
For best results, chill the butter and don’t overmix the topping ingredients.
