Ujjaja House is an old-style neighborhood Chinese restaurant in Seoul that serves machine-cut udon, jjajangmyeon, and jjamppong. The udon broth is clean-tasting, the jjajangmyeon contains potato, and the gimbap comes in an old-style preparation. It has operated in the same spot for over 20 years, and the udon and jjajang can be eaten quickly, with the udon also sought out as a hangover dish. The food's flavors are not strongly distinctive.