1. Prepare raw materials.

2. Peel the sweet potatoes and cut them vertically into thin slices.

3. Cut the thin slices into julienne strips.

4. Soak the sweet potato julienne in water to remove the starch on the surface of the julienne.

5. Chop the scallions.

6.frying pan pour two small tablespoons of vegetable oil, the oil is hot, the onion will burst incense.

7. Pour the sweet potato shredded in and stir-fry for two seconds.

8. Add two tablespoons of balsamic vinegar and stir-fry; (this is the way to keep the sweet potatoes crispy).

9. Pour about two tablespoons of sugar into it and stir-fry.

10. Add a little salt and soy sauce to neutralize the sweetness.

11. Continue to stir-fry until the sweet potato silk broken raw can turn off the fire. (Stir frying process has been with a strong fire quickly, or sweet potato silk will become sweet potato puree, this is better than the potato silk cooked, do not add water when frying).