Fish and eggs are common snacks in Hong Kong. They are made of fish, which is fish balls. At present, fish and eggs are popular in Fujian, Taiwan Province, Hongkong, Macau, Guangdong and Guangxi, and are essential ingredients in snack bars and hot pot restaurants. Fish eggs in Taiwan Province Province are one of the most popular varieties in Chinese mainland in recent years, among which pericardial fish balls are the best sellers, such as crab roe and cod cheese bags.