Preheat oven to 350 degrees. Cover cookie sheets with parchment paper or grease the cookie sheets.
Mix all ingredients in a large bow. Mix well. Form dough into 1" fingers or balls.
Bake for 20-25 minutes (depending on your oven). Let cool 5-7 minutes, then roll cookies in powdered sugar to coat while still warm. Note: I usually roll them twice to get good coverage. Store in covered container in a cool place.