1. The material is shown in the picture.
2. Peel and wash the yam, peel and wash the purple sweet potato.
3. Cut the purple sweet potato into small pieces and the yam into small pieces.
4. Wash the rice twice, and put the rice, purple sweet potato and yam together in the rice cooker.
5. Add an appropriate amount of water. Just add it to the position indicated by the rice cooker.
6. Put it in the rice cooker, start the rice cooker porridge cooking mode, about an hour is enough.