unsweetened cocoa powder
pinch of salt
Mix together cream cheese, powdered sugar, and peppermint extract for the filling. Fold in crushed peppermints. Place mixture in the fridge and let both filling and dough chill for 30 minutes to an hour.
Take dough and form into 2″ discs on a cookie sheet. Spoon filling onto a disc to cover about half of the cookie. Place another disc on top (like a sandwich) and gently press edges together so that no filling is showing. Place balls 2-3″ apart on a greased cookie sheet.