2. Clean cowpea horns and break them into pieces with your hands.

3. Put the bottom oil in a pot and heat the shredded scallions on low heat.

4. Stir fry the cowpea horns on low heat.

5. Cover the pot with a lid and simmer the cowpeas until the water dries up and the color darkens and the surface of the cowpeas appears wrinkled. Stirring frequently.

6. Prepare the sauce: vinegar, sugar, salt and garlic.

7. Pour the bowl of sauce and continue to stir fry, medium heat to collect the soup can be.