Chongyang Gao (重阳糕), alias: Gao (糕), Chrysanthemum Gao (菊糕), and Fat Gao (发糕). Named for its consumption on the Chongyang Festival, it is a traditional Chinese festival food for the Chongyang Festival. It is commonly found in Jiangsu, Zhejiang and Shanghai, and is not very popular in all regions of the country. The Chongyang Festival originated from the worship of heaven and evolved from the ancient times when the harvest rituals of the seasonal autumns were practiced. Lv's Spring and Autumn Quarterly Autumn Period" in the record, the ancients in September when the crop harvest sacrifice to the emperor, ancestor worship, in order to thank the emperor, ancestor benevolence activities.

The Chongyang Festival, in its historical development and evolution, is a mixture of various folklore, and carries a rich cultural connotation. Chongyang Festival folk activities, rich in cultural connotations. Over thousands of years, the festival has also given rise to activities such as climbing up to a high altitude, viewing chrysanthemums, organizing banquets to honor the elderly, eating chrysanthemum cakes, and drinking chrysanthemum wine.

Historical sources:

On the day of the Chongyang Festival, people in Nanjing would chisel five-colored paper into a slanting shape, connect it to form a flag, and insert it in the court. In front of the door of every household in rural areas of Shaanxi, green cornelian cherry is inserted and given to each other by neighbors. Eating Chung Yeung cake is popular in some parts of the country, mainly in Jiangsu, Zhejiang and Shanghai.

Chrysanthemum cake in the Southern Dynasties has been documented. More rice flour, fruit as raw materials, the system varies from place to place, mainly branding, steaming two kinds of cake inserted on the five-color small colored flag, stuffed and printed double goat, take the meaning of "Chongyang", is still popular. Chrysanthemum cake to rice flour, soybean flour and other raw materials, fermentation, more dotted with dates, chestnuts, almonds and other fruit naan, sugar steamed and become. Started before the Tang Dynasty, to the Song Dynasty, Bianjing (now Kaifeng, Henan Province), Lin'an (now Hangzhou, Zhejiang Province) and all over the very prevalent, in the universal custom.

Reference: Baidu Encyclopedia - Chongyang Cake