Jangsu Jeongyuksikdang is a Korean beef restaurant in Seoul that serves hanwoo. The menu includes 1++ deungsim and ansim, yukhoe, galbitang, and hoe naengmyeon (cold noodles). On Thursdays, a line forms for the 4 p.m. opening, and side dishes come with the meals. At lunchtime, the restaurant fills with customers looking for galbitang and hoe naengmyeon (cold noodles).