Igyeongmun Sundae Gopchang is an old Korean restaurant in Jongno that serves sundae gukbap and sundae gopchang jeongol. The sagol sundae guk has more ingredients than rice, and the sundae gopchang jeongol comes with gopchang in a thick broth full of perilla seed powder. When there is a wait, write your name and party size on the whiteboard in front of the entrance, and mix the bokkeum bap yourself. The interior is small.