Ginger vinegar egg is a traditional snack in Guangdong. As the name implies, it is an egg cooked with ginger and vinegar as seasoning. Traditionally, pig's feet (pig's trotters) are added, so there is an alias of "ginger vinegar pig's feet and eggs". There are also practices that only ginger, vinegar and pig's trotters are put, and no eggs are put. Ginger vinegar eggs are sweet and sour to wake the stomach and rich in nutrition, which is a traditional tonic for postpartum women. Ginger vinegar eggs, because of their unique sweet and sour taste and remarkable beauty effect, are no longer the patent of Confucius, but have become a Guangdong specialty snack that is deeply loved by everyone, especially women, and can be eaten in snack bars in the streets.