Ingredients: yam 350g, tomato sauce 4 tablespoons, soy sauce 1 tablespoon, balsamic vinegar 2 tablespoons, sugar 1 tablespoon, water 3 tablespoons, wet starch 1 tablespoon, a little salt and a proper amount of black and white cooked sesame seeds.

1. Peel the yam, cut it into sections and soak it in clear water.

2. Make sweet and sour sauce: 4 tablespoons tomato sauce.

3. Add 1 tablespoon sugar.

4. Add 1 tbsp soy sauce.

5. Pour in 2 tablespoons of balsamic vinegar.

6. Pour in 3 tablespoons of water and stir well for later use.

7. Put water in the pot, blanch the yam for two minutes, and remove it for later use.

8. Put a little salad oil in the pot.

9. Add the prepared sweet and sour juice and stir fry.

10, add yam.

1 1. Pour 1 tablespoon wet starch to wrap the sauce on the yam.

12. Add black sesame seeds and white sesame seeds, stir well and take out the pot.

13, finished product.