For the Crust:

• 1 1/2 cups all-purpose flour

• 1/2 cup granulated sugar

• 1/4 teaspoon salt

• 3/4 cup (1 1/2 sticks) unsalted butter, cold and cubed

For the Filling:

• 2 cups fresh blackberries

• 1/4 cup granulated sugar

• 1 tablespoon cornstarch

• 1 tablespoon lemon juice

For the Topping:

• 1/2 cup shelled pistachios, roughly chopped

• 1/4 cup all-purpose flour

• 1/4 cup brown sugar

• 2 tablespoons unsalted butter, melted

 Directions——————

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Line an 8×8-inch baking pan with parchment paper, leaving an overhang for easy removal.

2. Make the Crust: In a large mixing bowl, combine the flour, sugar, and salt. Add the cold cubed butter and use a pastry cutter or your fingers to mix until the mixture resembles coarse crumbs. Press the mixture evenly into the bottom of the prepared baking pan.

3. Bake the Crust: Bake the crust for 15 minutes, or until lightly golden. Remove from the oven and let it cool slightly while you prepare the filling.

4. Prepare the Filling: In a medium bowl, toss the blackberries with sugar, cornstarch, and lemon juice until well coated. Spread the blackberry mixture evenly over the baked crust.

5. Make the Topping: In a small bowl, combine the chopped pistachios, flour, brown sugar, and melted butter. Mix until crumbly. Sprinkle the topping evenly over the blackberry filling.

6. Bake: Bake for 25-30 minutes, or until the topping is golden brown and the filling is bubbly.

7. Cool and Serve: Let the bars cool completely in the pan on a wire rack. Once cooled, lift them out of the pan using the parchment paper overhang. Cut into squares and serve.