Shawan sauce is a traditional snack of Han nationality in Guangdong. Boil fresh buffalo milk with sugar, pour it into a bowl and collide with ginger juice. It is delicious as thin as tofu flower and steamed egg, but smoother and sweeter than tofu flower and steamed egg, and has the functions of warming middle warmer, harmonizing stomach, dispelling cold and caring skin. The taste is mellow and smooth, sweet and slightly spicy, with unique flavor, which has the function of warming stomach and relieving exterior syndrome.