The first step: the surface of the sweet potato clean, with a grinder to powder, if there is no production conditions of this step, you can also go directly to the supermarket or online to buy ready-made sweet potato flour, of course, their own species of sweet potatoes broken into powder, the taste may be necessary to buy better;
The second step: the sweet potato flour is the right amount of a little poured out and placed in a container, and then to the container Add hot water and knead the sweet potato flour into a ball;
Step 3: Knead the sweet potato flour into a ball and then slowly rolled into a strip, put these strips on the cutting board, with a knife to cut them into a small look, made into pills;
Step 4: Then put it in the water with some sugar and cook for about 10 minutes, of course, which can be added to the other ingredients that you like, or with the herbs together, for example, if you put chrysanthemum to cook it can lower the fire, so that the potato flour transparent pills are finished.