All my life, onions have made me cry. White onions, yellow onions, purple onions - even green onions! I used to have to walk away from the kitchen repeatedly while cutting onions, but no more. I've learned a simple trick that keeps the tears at bay - every time!
You know the end of the onion with the root still attached? Leave it on.
It's that simple! As soon as you cut off those roots, the onion fumes are released with gusto and your eyes start watering. Don't remove those roots until you're otherwise done, and you've just given yourself one more reason not to cry.