Ttangttangjip Nonhyeon Main Branch is a gamjatang restaurant in Nonhyeon-dong, Seoul, serving gamjatang, bone hangover soup, and seolleongtang. The bone hangover soup comes in a bowl larger than a ttukbaegi, with three pieces of pork spine and ugeoji. It is open 24 hours, the kitchen is open so the cooking process is visible, and the ojingeo jeotgal is taken from a self-service bar. A wait forms during lunch hours.