1. Peel the yam, wash, and cut into pieces with a hob.
2. Cut the "cooked elbow" into the pot.
3. Put in the yam cubes and add appropriate amount of water.
4. After boiling, put a few pieces of green onion and ginger.
5. Braise for 10 minutes, stirring once in the middle.
6. When the yam is cooked thoroughly, add a little salt to supplement the seasoning.
7. Put it out of the pot and put it in a bowl before serving.
Tips:1. Because the elbow is cooked, so long as the yam is well cooked.
2. Taste the final seasoning.
