Step 1: Preheat the Oven. Preheat your oven to 350°F (175°C). Line your baking sheets with parchment paper.

Step 2: Prepare the Dry Ingredients. Whisk together the flour and sugar in a mixing bowl until fully blended.

Step 3: Mix the Wet Ingredients. In a separate bowl, combine ricotta, egg, vanilla, and lemon zest until smooth.

Step 4: Form the Dough. Gradually add the dry mixture to the wet, stirring until a soft dough forms. Let it rest for 30 minutes.

Step 5: Roll and Cut the Dough. Roll the dough out to ¼ inch thick and cut into rectangles (2×3 inches).

Step 6: Prepare the Filling. Mix the ricotta, chocolate chips, and pistachios in a clean bowl.

Step 7: Fill the Cookies. Place filling in the center of each rectangle and seal the edges tightly.

Step 8: Bake the Cookies. Bake for 15-18 minutes until golden brown.

Step 9: Cool Down. Allow the cookies to cool on the baking sheets for 5 minutes.

Step 10: Final Touch and Serve. Dust with powdered sugar and serve warm or at room temperature.