Peanut Butter Cookies are a popular type of cookie made primarily from peanut butter, sugar, and flour. They are known for their rich, nutty flavor and chewy texture. Often, a fork is used to create a crisscross pattern on the top before baking, which is a signature look for these treats. These cookies can be made with various ingredients, including brown sugar for added sweetness or chocolate chips for extra flavor. They are a favorite among many and can be enjoyed as a snack or dessert, often paired with a glass of milk.