1. Add appropriate amount of water to cornmeal to make a paste.
2. Add an appropriate amount of water to the yam dry clean.
3. Boil for another moment after boiling.
4. Add the corn batter and stir well.
5. After the high heat is boiled, turn to medium and low heat and cook until the porridge thickens and the sweet potatoes are cooked and rotten. Turn off the heat.
6. Put it into a bowl and serve.
