Peanut Butter Cup Cookies Recipe

Preheat oven to 375 degrees. In a small bowl, combine flour, salt and baking soda. In a large mixing bowl, cream the butter, sugars and peanut butter until light and fluffy. Beat in egg, vanilla and milk. Slowly add flour mixture until well combined. Shape into small balls and place each into an ungreased mini-muffin pan. Bake for 8 minutes. Remove from oven and press a peanut butter cup into the center of each. Cool in pan.