Cooking Steps

1. 

   Step1:Wash and peel sweet potatoes. Cut into hobs.

2. 

   Step2:Wash yam (eat with skin for nutrition). Cut the hob.

3. 

   Step3:Cut it and put it into cold water to prevent discoloration.

4. 

   Step4:Pour into the pot.

5. 

   Step5:Add some water. If you like to drink thick soup, you can put some rice or corn dregs.

6. 

   Step6:Cover the pot. Cook over high heat.