A xiaolongbao is a small kind of dumpling. It is made of a flour skin wrapped around a ball of pork, crabmeat, shrimp, or bok choy and other vegetables. It is steamed in a small basket called a "xiaolong", which gives the dumpling its name. The steam and meat together create some soup inside the dumpling. It was first made in Nanxiang in northwestern Shanghai, but the man who made it first later moved his shop to Yu Garden to get more business.