Green onions are a flavorful addition to soups, salads, sandwiches and everything in between, which make them a great fresh staple to keep stocked. What better way to do that than to grow your own? Learning how to regrow green onions from leftover scraps is easy, efficient and a great way to cut down on food waste in your home. It’s also a fun project to do with kids! It might sound intimidating, but this kitchen hack couldn’t be easier.
Step 1: Cut Off the Bulbs
Cut off the green tops of your onions so that just the white bulbs remain. Make sure that the stringy hairs at the bottom are intact (those are the roots, so they’re super important for regrowth).
Use the green part of the onions in a recipe like Chinese pancakes.
Step 2: Place in a Jar
Next, place the bulbs in a glass jar or plastic cup. Nearly any glass will work here so if you don’t have a mason jar, try a deep bowl or stemless wine glass. Make sure that the roots and bulbs are pointed down and resting toward the bottom of the jar. (Just like regrowing celery.)
Step 3: Add Water and Sunshine
Add enough water so that the white part of the bulb is completely submerged. You’ll need to add a bit more water each day, but make sure not to overfill the jar the first time around. Place your green onions in a sunny spot, like a windowsill, and wait.
You should start seeing those green stalks grow taller within a few days, and they’ll likely be back to their original size within a week or so! Trim them off the next time you’re making tacos or looking to punch up some scrambled eggs.
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