Doner kebab or döner kebab is a dish of Turkish origin made of meat cooked on a vertical rotisserie. Seasoned meat stacked in the shape of an inverted cone is turned slowly on the rotisserie, next to a vertical cooking element. The operator uses a knife to slice thin shavings from the outer layer of the meat as it cooks. The vertical rotisserie was invented in the 19th-century Ottoman Empire, and dishes such as the Arab shawarma, Greek gyros, Canadian donair, and Mexican al pastor are derived from this.