Gaeseong Kimchi Son Mandu is an old neighborhood dumpling shop in Seoul that serves kimchi hand dumplings and mandu soup. The kimchi dumplings combine a spicy, sour kimchi filling with a chewy, thick wrapper, and the tteok mandu guk holds rice cake pieces that do not fall apart in a clean beef bone broth. Raw dumplings can sell out before noon, and a wait forms during lunch hours. Parking is difficult.