Waterzooi is a classic stew of Flanders. Its name is Dutch, "zooien" meaning "to boil". It is sometimes called Gentse Waterzooi (in Dutch) which refers to the city of Ghent. The original form is made of fish, either freshwater or sea, though today chicken waterzooi is more common. The most accepted theory is that rivers of Ghent became too polluted and the fish there disappeared The stew is made of the fish or chicken, vegetables including carrots, leeks and potatoes, herbs, eggs, cream and butter and usually served as a soup with a baguette to sop up the liquid.