1, cowpea blanching time won't be too long, usually about 5 minutes, and it can be cooked. You should also pay attention to the method when blanching cowpeas. It is best to use hot water first, then cold water. Scalding cowpea with hot water can make cowpea more delicious in subsequent cooking, and supercooling can keep its color green and look better.

2. It is relatively simple to blanch the cowpea. Wash cowpeas, remove bean tendons and put them in the pot. After adding water, add salt and sesame oil and cook together. After about 5 minutes, fish out with cold water, drain the water, and then carry out the subsequent frying work.