1. Wash the yam and steam it in a steamer for about fifteen minutes.

Peel the yam after steaming. I cut it with a peeler. It's too much trouble to cut it by hand.

3. Put it into a blender, add a proper amount of water and start stirring.

4. Stir two spoonfuls of rock sugar powder. If there is no rock sugar powder, you can also add some honey.

5. Delicious yam juice is ready