Rice cakes are made from glutinous rice flour. We buy them at the Korean market. They're a great alternative to bánh phởor ordinary noodles. What I love most about this product is that they're made with no additives or preservatives. They're a favorite at our house. The texture is very nice, and works well in a simple, clear vegetable broth. If you're looking for a healthy meal, this is not your average diet cabbage soup.