1. Still use a knife to cut the corn into pellets; soak the yam beans in water and clean them
2. Prepare a few chestnut kernels; add water to the pot and add corn kernels
3. Add washed yam beans; add chestnut kernels and cook together
4. Add a little rock sugar and cook together for 10 minutes
5. Pour the cooked ingredients and the soup into the cooking machine and start the machine
