Reese's Peanut Butter Cups are a popular candy made by The Hershey Company. They consist of a smooth peanut butter filling encased in a chocolate shell. The combination of sweet chocolate and salty peanut butter creates a unique flavor that many people enjoy. First introduced in 1928, Reese's has become one of the best-selling candies in the United States. The cups are available in various sizes and flavors, including miniatures and seasonal shapes. They are often used in baking and desserts, adding a rich, nutty taste to recipes.