Boiling proportions of the ingredients of the Colla Corii Asini cake: 250 grams of Colla Corii Asini, black sesame seeds, walnuts, 100 grams of goji berries, 200 grams of rock sugar, 500 milliliters of wine, according to this proportion of the ingredients of 250 grams of Colla Corii Asini can be made of 2-3 pounds of Colla Corii Asini cake. Colla Corii Asini cake belongs to the medicinal and food products, the use of Colla Corii Asini with black sesame, walnuts, Xinjiang jujube and other medicinal and food natural raw materials refined.

Inside the four ancient beauties, Yang Guifei had the best skin. Tang Dynasty poet Bai Juyi once described about Yang Guifei's skin, said "spring cold give bath Huaqing Pond, hot spring water slippery wash grease", grease is that Yang Guifei's skin is very delicate and smooth. The Colla Corii Asini cake made of Colla Corii Asini, known as "the sacred medicine of blood replenishment", is one of the beauty secret recipes hidden by the great beauty.

The world's first pharmacopoeia, issued by the government of the Tang Dynasty, the "Newly Revised Materia Medica - Volume XV" clearly recorded: "Colla Corii Asini, boiled donkey skin for the, out of the Dong'a, so the name Colla Corii Asini.

"Where there are three kinds, clear and thin, calligraphy and painting. Thick and clear, known as poncho gum, used for medicine. Turbid black, can be used for glue, not into the medicine." The literature clearly and unambiguously pointed out that the raw material of Colla Corii Asini was donkey skin. Colla Corii Asini cake and sea cress ginseng with food in order to play a role.