Yangzhou, Jiangsu. Huaiyang cuisine is one of the four traditional cuisines in China, which originated from Yangzhou and Huai 'an. Huaian is located in the north-central part of Jiangsu Province, east of Jianghuai Plain. Located in the Yangtze River Delta, it is an important central city in northern Jiangsu, a close-knit city in Nanjing metropolitan area and the first city in the Huaihe River eco-economic belt.