Shanghaimun is a Chinese restaurant in Eungam-dong that serves ganjjajang, jjamppong, and mandu. The ganjjajang has a distinct wok-fired flavor and comes without sauce, while the jjamppong is served in a spicy broth with black pepper or mala notes. The tangsuyuk features a crispy glutinous rice batter and thick pieces of meat. The dining room is small, so seats fill up quickly during lunch hours.