Kaeng Khiao Wan Kai is one of the most popular 10 curry dishes of Thailand. Its herbal hot but sweet flavors make it unique among Thai curries, the heat being determined by the amount of green chilies that are used. To make the dish more flavorful, 1/2 cup of fresh green peppercorns can also be added to the curry mixture. Though chicken is the most popular meat for Kaeng Khiao Wan, beef, and pork are also an elegant options.
Kaeng Khiao Wan Kai is so common that you will find it at any to-go curry vendors in Thailand. This curry is eaten with rice or ‘Khanom Chin’ (boiled rice flour noodle form, usually mixed with curry or condiments). You can see this curry's popularity when you go to a temple in Thailand; Thai people frequently bring the classic dishes like this curry to feed the monks and other temple patrons.