Viral Dubai Pistachio Stuffed Chocolate COOKIES

Pistachio Filling: About 1.5 Tbsp butter 1 3/4 heaping cups kataifi, finely chopped 3/4 cup pistachio spread pinch salt optional: 1 Tbsp tahini paste Chocolate Cookie (makes 12-14 cookies) 1 cup (135 g) all purpose flour 7 Tbsp (42 grams) cocoa powder 1/4 tsp baking powder 1/2 tsp baking soda 1/4 tsp salt 8 Tbsp (113 g) unsalted butter or 1 stick 2 Tbsp (25 g) granulated sugar 3/4 cup (159 g) dark or light brown sugar 1 large egg 1 tsp vanilla extract 325° for 11-13 minutes