I’ve heard about this a few times over the last few years – that you can supposedly regrow green onions. Well, I finally decided to give it a try, and it’s true! Leave an inch or two of the white part with the root end, and stick them into a small glass with water. Be sure to change the water every few days so it stays fresh. It is slow going though – I’ve had mine for about a week, and they’ve only grown back up about an inch. But what a cool way to get something fresh that you’d otherwise throw away!