A graham cracker is a sweet, crisp cookie made from whole wheat flour, sugar, and honey. It was created in the early 19th century by a Presbyterian minister named Sylvester Graham, who believed in a healthy diet. These crackers are often used as a base for desserts, such as s'mores, where they are combined with chocolate and marshmallows. Graham crackers are commonly found in grocery stores and come in various flavors, including cinnamon and chocolate. They are versatile and can be enjoyed on their own, used in recipes, or crushed to make crusts for pies and cheesecakes.