The hot dog is a grilled or steamed sausage sandwich where the sausage is served in the slit of a partially sliced bun. It can also refer to the sausage itself. The sausage used is the wiener or frankfurter. The names of these sausages also commonly refer to their assembled sandwiches. Hot dog preparation and condiments vary regionally in the United States. Typical condiments include mustard, ketchup, mayonnaise, relish, and cheese sauce, and common garnishes include onions, sauerkraut, jalapeños, chili, grated cheese, coleslaw, bacon, and olives. Hot dog variants include the corn dog and pigs in a blanket. The hot dog's cultural traditions include the Nathan's Hot Dog Eating Contest and the Oscar Mayer Wienermobile.