A Graham cracker is a sweet, crisp cookie made from whole wheat flour, sugar, and honey. It was invented in the early 19th century by the American dietary reformer Sylvester Graham, who believed in a healthy diet. These crackers are often used in desserts, such as s'mores, and can be enjoyed on their own or with toppings. Graham crackers are typically rectangular in shape and have a slightly coarse texture. They are commonly found in grocery stores and come in various flavors, including cinnamon and chocolate. Their versatility makes them a popular choice for both snacking and baking.