In an electric mixer, cream butter and cream cheese together until light and fluffy. Add the lemon zest and lemon juice and incorporate it.
8 tbsp (1 stick) unsalted butter, 1 ½ oz cream cheese, zest of one lemon, juice of ½ lemon
Sift the flour, salt, and powdered sugar, and add them to the wet. Mix until the dough comes together around the paddle. Add minced rosemary and mix thoroughly.