I’ve heard about a million theories about how to avoid crying while chopping onions. Unless you’re like my mother, who doesn’t cry when she chops onions (I didn’t know that was even possible), you’re looking for something that actually works.
Perhaps you’ve found something already, but personally I don’t want to have to hunt down my goggles every time I need to chop an onion. Or one of these:

I want little effort, lots of payout.
I’ve been browsing articles about why onions make us cry, and it’s a about some crazy acidic compound in the onion being released into the air and irritating the lacrimal glands (the ones that produce tears). “Very scientific, Molly…”
So what you’ve been waiting for… (the imaginary voices ask me all kinds of questions that I feel obliged to answer publicly)
“How do you do it, Molly?”
Ladies & Gentlemen, I present to you…The Molly Piper Onion-Chopping Method!!!
Here’s what you’ll need:
As soon as you’re gonna cut that bugger, start breathing deeply in and out through the mouth ONLY. Focus on mouth breathing for the entire time you’re cutting and working with the onion. Rinse your knife, cutting board, etc. as soon as you can and you should be good.
(Note: this may be one of the few times in life that being a “mouth breather” is acceptable.)
Also, I use my Pampered Chef Food Chopper pretty religiously when I chop onions, just because it’s faster. I quarter them and chop the heck out of them! (That might be my favorite Pampered Chef item of all time, but that’s probably another post.)
If you deviate back to nose breathing, you’ll start crying. Just get back on track with the mouth breathing and the crying should subside. This has been my method of choice for years now, so I hope it works for you too!
Do you have an onion-cutting tip to share? Let’s hear it!