Japchae is a savory and slightly sweet dish of stir-fried glass noodles and vegetables that is popular in Korean cuisine. Japchae is typically prepared with dangmyeon, a type of cellophane noodles made from sweet potato starch; the noodles are mixed with assorted vegetables, meat, and mushrooms, and seasoned with soy sauce and sesame oil.

Cellophane noodles, or fensi, sometimes called glass noodles, are a type of transparent noodle made from starch and water. A stabilizer such as chitosan may also be used.