Xiaolongbao, also known as soup dumplings, are a type of steamed bun that originated in Shanghai, China. These dumplings are filled with a mixture of minced pork, gelatinized broth, and seasonings. When steamed, the broth inside the dumplings turns into a delicious soup, creating a burst of flavor with each bite. Xiaolongbao are typically served with a dipping sauce made from black vinegar and ginger.