Furthermore, if you're like me, you'll buy them for a recipe that only calls for half the onions. Then, with every intention of finding a use the for other half, we put them in the fridge and forget them until they've gone bad. This effectively doubles the cost of those little green onions, because we've now paid $1.99 to use 1/2 that bundle.
After some Googling, I found that green onions freeze really well. You just cut them up into small pieces like you normally would for most recipes, put them in a plastic bag, and throw them in the freezer. That's definitely helpful, but I still shudder at the cost of those onions. After some More Googling, and then some home experimentation, it seems there is a simple solution!
When you chop your green onions, don't go too close to the root, just get the green stalks. Then put the root ends in a small glass (tall shot glasses work well) with some water, and place in a window. Your onions will grow new stalks that you can trim and add them your freezer bag, and keep growing more after you trim them! I hesitate to say this will make unlimited onions, but so far I've harvested nearly a 1/2 of a sandwich size Ziplock bag's worth of onions and they're still going strong. I just keep the water topped off in the glass, and every time I trim the onions I change the water completely and give the roots a rinse under fresh running water for a few seconds.
I'm looking forward to being able to use green onions in recipes in the future without having to worry about how expensive they are! Enjoy!
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