Tom Kha Gai — Coconut Galangal Chicken Soup / ต้มข่าไก่

Central Thai — considered a national dish; the name literally means 'boiled galangal chicken'

Tom kha is the coconut-rich counterpart to tom yum — the same aromatic base (galangal, lemongrass, kaffir lime leaves) but poached in coconut milk rather than clear broth, creating a soup that is silky, fragrant, and less aggressive than tom yum. The galangal ('kha' gives the soup its name) is the dominant aromatic — it must be fresh, young, and sliced in 5mm rounds so it infuses efficiently without becoming too dominant. Chicken thigh (skin-on for fat, on the bone for flavour) is the traditional protein. Oyster mushrooms or straw mushrooms complete the dish. Like tom yum, lime juice and fish sauce are calibrated off-heat — the boiled-lime problem applies equally here.

Tom kha achieves the rare combination of comfort and complexity — the coconut richness is warming and familiar; the galangal and kaffir lime provide medicinal-aromatic edge; the lime and chilli sharpen the finish. It is simultaneously restorative and stimulating.