Dure Guksu is a noodle restaurant in Apgujeong, Seoul, serving gogi-guksu, bibimbap, and gopchang jeongol. The gopchang jeongol has plenty of gopchang and other ingredients in a clean, spicy broth, and noodles are added to the pot after the jeongol is finished. The restaurant opens at 11 a.m. At lunch, the line runs 20 to 30 minutes.