This Hot Dog Keychain is hard enamel and will last as long as your keys last. A great gift for anyone that loves Hot Dogs or for the Cook that has Everything. The hot dog (also spelled hotdog) is a grilled or steamed sausage sandwich where the sausage is served in the slit of a partially sliced bun.[4] It can also refer to the sausage itself. The sausage used is the wiener (Vienna sausage) or frankfurter (also frank). 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, and olives.