Puto bumbong is a Filipino purple rice cake steamed in bamboo tubes. It is traditionally sold during the Christmas season. It is a type of puto.

A rice cake may be any kind of food item made from rice that has been shaped, condensed, or otherwise combined into a single object. A wide variety of rice cakes exist in many different cultures in which rice is eaten. Common variations include cakes made with rice flour, those made from ground rice, and those made from whole grains of rice compressed together or combined with some other binding substance.