Sweet potato soup is a Chinese dessert from Southern China and Hong Kong.

[1] In Cantonese cuisine, it is categorized as a tong sui or sweet soup, hence the Chinese name.

The recipe is simple, consisting of boiling the sweet potato for a long time with rock candy and ginger.

Sweet potato is one of the most commonly found and abundant vegetables grown in China.

[2] With its simple recipe and large crop supply, sweet potato soup is one of the most accessible and affordable tong sui in the region.