Combine ingredients: Stir together peanut butter, sugar, egg, and vanilla extract in a large bowl until combined. Shape dough into 1-inch balls. Place balls 1 inch apart on ungreased baking sheets, and flatten gently with tines of a fork. Bake at 325°F for 15 minutes or until golden brown. Remove to wire racks to cool. … Continue reading Easiest Peanut Butter Cookies