The classic hot dog is a staple in Beijing street food culture. It consists of a juicy sausage, usually made from pork or beef, served in a soft bun. Topped with ketchup, mustard, and a sprinkle of onions, it offers a burst of flavors in every bite. Whether you're exploring the bustling streets or attending a sports event, the classic hot dog is a convenient and delicious snack to satisfy your hunger.