Andong Guksi is a traditional Korean restaurant in Goryeo Building in Yeouido, Seoul, serving sagol broth with handmade noodles. The thin kalguksu noodles are made from dough mixed with soybean powder and are eaten with seasoning sauce, chives, and kimchi. It has operated in the same spot for over 30 years and is within walking distance of Saetgang Station, with parking available. The food is on the expensive side.