Preheat oven to 350°. Shape cookie dough into 24 (1-inch) balls, and place in cups of lightly greased miniature muffin pans. Bake 15 to 18 minutes or until edges are lightly browned. Remove from oven, and press 1 miniature peanut butter cup candy into each cookie. Sprinkle each cookie with 1/2 tsp. chopped peanuts.