Rinse and wash your green onions with water. Scrub them gently with your fingertips to remove dirt.
Place them onto the paper towel to let them dry and get rid of water.
Remove the bad layers of the onions to use only the fresh part of the onion.
Remove ¼ of an inch from both ends.
Batch them into the chopping board and run your knife in a rocking motion. Cut the green part for garnishing purposes. Save the white part for cooking.
Take the white part of the onion and cut them thoroughly. Use your knife in a pull and push circular motion to chop your onion.
Once done with chopping, either use them immediately or store them in an airtight container. Note that you need to store the green and the white parts separately to lock their freshness.