No, not THOSE rice cakes. Chewy rice cakes, made from rice flour and tapioca starch, are most famously used in the Korean dish tteokbokki: a popular street food made with gochujang. You can find them at Asian grocery stores in vacuum-sealed packs or frozen, and they also often have them at other well-stocked supermarkets. If you're looking for a gluten-free pasta alternative, or just simply like to try new foods, give them a try!