Gangnam Myeonok Insa serves Hamhung-style naengmyeon, galbijjim, and dumplings at the entrance of Insadong. The mul naengmyeon comes with chilled broth, while the hoe naengmyeon is topped with chewy ganjaemi. The wang mandu and steamed mandu are large and filled with meat. The hoe naengmyeon seasoning is sweet and strong, so avoid it if you are sensitive to spicy food.