Wild Watercress and Snakehead Fish Soup

Why people make this soup

In traditional Chinese medicine, “yin deficiency” refers to a state where the body’s moistening and cooling reserves are depleted — often showing up as a dry mouth, burning feeling in the palms or soles, mild gum bleeding, haemorrhoid flare-ups, or achy joints. This classic Cantonese folk soup is made to address that pattern. Wild watercress (ye ge cai, sometimes called tang ge cai or pond cress) grows along stream banks and is available at Chinese herb shops and some Asian grocers. It has a clean, slightly peppery flavour, and tradition holds that it clears internal heat from the bones and joints. Snakehead fish, pan-fried briefly before going into the pot, gives the soup a rich golden colour and a warming, protein-rich base. Together, the soup is considered especially good as a seasonal autumn drink — when dryness tends to creep in — but is useful year-round.