It's called a square cake. According to the investigation of eight Chinese cuisines, the white dim sum in Huizhou banquet is Yunling square cake, a special food in Jingxian County, Anhui Province, which is made of glutinous rice, sesame seeds and sugar. Yunling square cake is fragrant and refreshing, and has a sweet taste. Anhui Province, referred to as "Anhui" for short, is the provincial administrative region of People's Republic of China (PRC) (China), the capital city of Hefei, located in the Yangtze River Delta in the east of China.