South Feng Ming. Nanyaoli mung bean cake originated from Guangong's hometown, Yuncheng Jiezhou, and was made by Nanfengming on the basis of ancestral secret recipe, incorporating modern fashion and healthy elements. Mung bean cake is mainly made of mung bean powder, low flour and edible oil. After a special process, it is made into a good product with soft skin and fragrant stuffing. Its stuffing is mainly mung bean.