Ingredients
Equipment
Method
Preparation Steps
- Preheat your oven to 350°F (175°C) and grease a 9x13 inch pan.
- In a large mixing bowl, whisk together all-purpose flour, granulated sugar, and salt.
- Cut in the cold, cubed unsalted butter using a pastry cutter until the mixture resembles coarse crumbs.
- Add the egg yolk and ice water, mixing until you form a cohesive dough.
- Press the dough into the prepared pan and pre-bake for 15-20 minutes until it turns golden.
- In a medium saucepan over medium heat, combine fresh blackberries and a bit of granulated sugar.
- Cook while gently stirring until the berries release their juices, about 5-7 minutes.
- Once bubbling, stir in fresh lemon juice and cornstarch until the mixture thickens, which will take about 1-2 minutes.
- Remove from heat and allow the filling to cool while you prepare the pistachio topping.
- In a bowl, mix together light brown sugar, baking powder, and flour.
- Incorporate cold, cubed butter with a pastry cutter until the mixture resembles coarse crumbs.
- Add in an egg and vanilla extract, mixing until well combined.
- Lastly, fold in chopped pistachios, ensuring an even distribution.
- Once the crust has cooled slightly, spread the blackberry filling evenly across the surface.
- Sprinkle the pistachio topping generously over the filling, ensuring complete coverage.
- Bake in the oven for 30-35 minutes, or until the topping is golden and the filling is bubbly.
- Remove your bars from the oven and let them cool in the pan on a wire rack for 1-2 hours.
- Once completely cool, cut the bars into squares or rectangles to serve.
Nutrition
Notes
For best results, use cold ingredients and allow the bars to cool completely before slicing.
