Tom kha gai is Thailand's delicious national dish coming from the central part of the country and bearing the influence of neighbouring Laos. It is a soup whose name translates to boiled galangal chicken soup, consisting of coconut milk, chicken chunks or shreds, galangal (reddish-brown or pink woody plant related to ginger), lemongrass, garlic, bird's eye chili peppers, kaffir lime leaves, fish sauce, and shiitake mushrooms.

Galangal's peppery, pungent, slightly sour and floral flavors provide an interesting contrast to the creaminess of coconut milk, creating a wonderfully aromatic dish in the process. Tom kha gai is highly nutritious with great medicinal properties, such as the ability to soothe the gastro-intestinal tract.

Since the dish is very popular, there are also other versions of the soup - vegetarian, tofu, seafood, and pork tom kha are just some of its varieties. It is traditionally served with rice on the side, garnished with coriander leaves and diced tomatoes.