Parmesan Cookies

Preheat oven to 350 with racks in upper and lower thirds. Line 2 rimmed baking sheets with Silpat or parchment. Mix all ingredients in stand mixer and beat until stiff dough forms. Divide into 3 pieces and roll each into a 9″ log, about 1 1/2 inched in diameter. Wrap each tightly in plastic wrap and refrigerate at least an hour or freeze. Slice logs into 1/3″ thick logs and arranged on pan, about 2″ apart. Bake 15-18 min until they turn golden brown around the edges, shifting and rotating pans halfway through baking. Cool 10 min and transfer to racks for cooling.

Butter     2 sticks unsalted, at room temp
Cheese     2 c finely grated Parmigiano-Reggiano
Flour     1 3/4 c