Naengmyeon (냉면; 冷麵, in South Korea) or raengmyŏn (랭면, in North Korea) is a Korean noodle dish of long and thin handmade noodles made from the flour and starch of various ingredients, including buckwheat (메밀, memil), potatoes, sweet potatoes, arrowroot starch (darker color and chewier than buckwheat noodles), and kudzu (칡, chik). Buckwheat predominates (despite the name, it is not a wheat but rather is more closely related to sorrel). Other varieties of naengmyeon are made from ingredients such as seaweed and green tea.