Reese's Peanut Butter Cup

The Reese's division of Hershey is famous for its peanut butter cups, which are peanut butter filled chocolate cups. In the United States, they come in two, four, and six packs. In Canada, known as Reese Peanut Butter Cups (note no 's) the cups come in a standard pack size of three cups, or the king-size variation with four cups.