A peanut butter cookie is a sweet baked treat made primarily from peanut butter, sugar, and flour. These cookies are known for their rich, nutty flavor and soft, chewy texture. They often feature a crisscross pattern on top, created by pressing the dough with a fork before baking. Peanut butter cookies can be enjoyed on their own or paired with a glass of milk. They are a popular choice for dessert and can be found in many bakeries and homes. Variations may include added ingredients like chocolate chips or oats for extra flavor and texture.