01 -
Preheat oven to 175°C. Line a 20x20 cm or 23x23 cm pan with parchment paper, allowing overhang for easy removal. In a food processor, pulse flour, ground pistachios, powdered sugar, and salt. Add cold butter cubes and pulse until mixture resembles coarse crumbs. In a small bowl, whisk egg yolk with 2 tbsp ice water. Drizzle into the dough while pulsing, adding an extra tablespoon of water if necessary, until mixture just holds together.
02 -
Firmly press crust mixture evenly into the prepared pan. Prick surface all over with a fork. Bake for 18–20 minutes until light golden. Set aside to cool completely.
03 -
Whip cream cheese with a mixer on medium speed for 2 minutes until light. Add powdered sugar, pistachio paste, vanilla, and salt; beat until smooth. In a separate bowl, whip heavy cream to soft peaks. Fold whipped cream gently into the pistachio mixture until fully incorporated.
04 -
Spread pistachio cream evenly over cooled crust. Level the surface. Refrigerate while preparing blackberry compote.
05 -
In a medium saucepan over medium heat, combine blackberries, sugar, and lemon juice. Cook, stirring occasionally, for 5–7 minutes until fruit breaks down. Mix cornstarch with water in a small bowl until smooth, then stir into the berry mixture. Simmer for 2–3 minutes, stirring, until the compote thickens. Remove from heat and cool for 10 minutes to a spreadable temperature.
06 -
Evenly spread cooled blackberry compote over the pistachio cream layer. Sprinkle with chopped pistachios and arrange fresh blackberries and optional mint leaves over the surface for a decorative finish.
07 -
Refrigerate assembled bars for at least 4 hours, preferably overnight, to set the layers. Use parchment paper to lift and transfer to a cutting board. Cut into 16 squares with a sharp, clean knife, wiping blade between cuts for neat edges.