materials: appropriate amount of sweet potato powder, appropriate amount of salt, appropriate amount of clear water and appropriate amount of vegetable oil

production method:

1. Add a little salt and clear water to sweet potato powder.

2. Stir into sweet potato paste.

3. Pour the sweet potato powder paste into the fine-eye mesh, and filter to get larger particles.

4. Brush the pan with a thin layer of oil and heat it over medium heat.

5. Pour in the sweet potato paste.

6. Keep stirring to prevent the bottom from being burnt.

7. Stir-fry for about 5-8 minutes, and then turn off the heat after the water in the pot becomes less and transparent.

8. Pour into a bowl and set aside.

9. After cooling, the powder becomes hard, which is the sweet potato powder.