Summer noodles made easy try a different kind of summer cool down with miyakoichis hiyashi chuka cold ramen noodles with soy sauce and vinegar soup this pack contains three servings worth of pre cooked hiyashi chuka long thin noodles made from wheat flour salt and brine water as well as three sachets of savoury soy sauce and vinegar soup hiyashi chuka is one of japans most loved cold noodle dishes and this version can be prepared on the stove or in the microwave in minutes flat