Yeonghwajeong Haejangguk is a Korean restaurant in an alley near Gil-dong Station in Gangdong-gu, Seoul, and it serves only seonji haejangguk. The soup uses a sagol and doenjang base with seonji and cabbage, and it is eaten with minced garlic and daddaeji to change the flavor as you go. It is open from 3 a.m. to 3 p.m., with the last order at 2:30 p.m., and takeout is available. Parking is not easy.