A hot dog (frankfurter, frank, wiener, weenie) is a moist sausage of soft, even texture and flavor, often made from advanced meat recovery or meat slurry. Most types are fully cooked, cured or smoked. It is often placed hot in a special purpose soft, sliced hot dog bun. It may be garnished with mustard, ketchup, onion, mayonnaise, relish, cheese, chili or sauerkraut. The flavor can be similar to a range of meat products from bland bologna to spicy German bockwurst varieties. Kosher or Halal hot dogs may be made from beef, chicken or turkey. Vegetarian hot dogs made from meat analogue are available.
Unlike other sausages which may be sold uncooked, hot dogs are always cooked. Hot dogs can be eaten without cooking, although they are usually warmed before serving. Since even the unopened packaged hot dog can have bacteria it is safer to cook them (especially important for pregnant woman).