Blanching is an important step when cooking broccoli. Blanching makes the broccoli more tender and removes any bitterness and impurities from it. The blanching time depends on the size of the broccoli and your personal taste, but usually you need to blanch it in boiling water for 1-3 minutes.

If the blanching time is too short, the broccoli may still retain some bitterness and impurities; if too long, the broccoli will become too soft and lose its nutrients. Therefore, the correct blanching time is very important.

After blanching, try running the broccoli under cool water to stop it from continuing to cook. This can also help retain the color and nutrients of the broccoli.

In conclusion, blanching is one of the key steps in cooking broccoli. The right blanching time and method will make broccoli more flavorful, tender and retain all its nutrients.