1/2 C peanut butter
1/2 C Butter, softened
Heat oven to 375. In large bowl, beat sugar, brown sugar, peanut butter, and egg on medium speed. Stir in flour, soda, and baking powder. Shape dough into 1” balls; roll in additional granulated sugar. Place 2” apart on ungreased cookie sheet. Bake 8-10 minutes or until edges are light brown. Immediately press 1 candy in center of each cookie. Remove from cookie sheet to wire rack.
Make a paste of 2T flour and 1 C milk. Cook until thick; cool completely. Add 2 sticks softened butter, 1 C powdered sugar, and 1t vanilla. Beat at high speed until light and fluffy. (If icing looks curdled, it may be too cold. Microwave for 5 seconds. If it looks runny, it may be too warm. Set bowl in a sink of ice water for a few minutes.)