Imone Yeontanbul Gopchang is a gopchang grill in Nowon-gu, Seoul, about a six- to seven-minute walk from Gongneung Station Exit 2 toward Seoul National University of Science and Technology. It serves one item: makchang (beef abomasum), grilled until thick and chewy pieces are crisp like snacks, with vegetables such as potato and garlic cooked in the drippings. Orders are taken only once, and vegetables can be refilled self-service. Grilling the makchang takes a long time, so waits are long.