Corn dogs are a popular American snack made by coating a hot dog in a thick layer of cornmeal batter and then deep-frying it until golden brown. They are often served on a stick, making them easy to eat at fairs, carnivals, and sporting events. The origins of corn dogs can be traced back to the 1940s, and they have since become a staple in American cuisine. They are typically enjoyed with condiments like mustard or ketchup, and variations may include different types of sausages or additional toppings.