Chaoshan has been a serious food shortage area with a large population and a small population since ancient times. In order to fill their stomachs, Chaoshan people try their best. The ingenious Chaoshan women are even more varied, and "no rice cake" is what women change to cook without rice.
The skin without rice husk is made of sweet potato powder. Since the secret introduction of sweet potato from the Philippines by the Chen family in Fujian during the Wanli period of the Ming Dynasty, it entered Guangdong with the Minnan people and quickly spread throughout the Chaoshan land, becoming another staple food for hipsters. If you can't finish eating sweet potatoes, you can grind them into powder. Potato head can be used for raising pigs, and potato powder can be used as non-staple food and seasoning. The famous Chaozhou oyster scone, Qingxin Pill sweet soup in summer, potato flour cake and rice cake are all made of potato flour.