Gangsu Gopchang is a gopchang restaurant near Hongdae that serves Hanwoo gopchang and makchang. Ordering the Hanwoo deungsim kollabo brings beef sirloin, gopchang, and daechang together, made with Hanwoo used shortly after slaughter. A bean sprout soup is served before the meal, and you can eat at the terrace in front of the shop as outdoor seating. The offal has no gamey smell and the portions are large.