Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.
Sift together 2 cups of unbleached flour and a pinch of salt. Set aside.
In a separate bowl, combine ½ cup of melted butter with 1 cup of powdered sugar, then add the lemon zest and juice along with 1 cup of mashed black raspberries.
Gradually add the dry mixture to the wet ingredients, stirring until just combined.
Roll the dough into balls slightly smaller than a golf ball, about 1.5 inches in diameter.
Flatten each ball to about ¼ inch thick on the prepared baking sheet.
Bake for 8-10 minutes, starting to check at the 8-minute mark for light golden edges.
Cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.
After cooling, the cookies are ready to enjoy!