Colla Corii Asini Cake with Walnut, Jujube and Jujube is a kind of winter meal with the function of enriching blood. Every winter, many people will prepare Ejiao to supplement qi and blood. Of course, the most popular way is to make Ejiao cake. Ejiao can tonify qi and blood, walnut kernel is often used to tonify brain, and black sesame can blacken hair. Chinese medicine believes that rock sugar has the functions of moistening lung and relieving cough, resolving phlegm and removing fire. Jujube is a tonic, and it can also replenish qi and blood. This noodle is suitable for people. You can try it if your hands and feet are cold in winter. I've been cooking and eating every year for several years. If you are not afraid of the cold in winter and eat nosebleeds, it is not suitable for eating.