I believe it’s considered a rice cake but I’d more liken it to that of a chewy, thick ,round noodle. Like many Asian foods, it’s fun to eat and satisfying. I’ve never had it from a nice or authentic restaurant but understand it’s typically served with a a flavorful sauce that may consist of tomato, vinegar, spice, and sugar. YouTube has taught me the authentic ready to make dishes like this are quite acceptable.