Will try this as sometimes I like to put onion in my egg salad. It usually takes planning. I try to remember to set a little onion aside (to use in my egg salad) when I'm making onion & mushrooms. Of course I rarely remember to do this.
Originally Posted by
mac
All urban legends. Being raised Italian, with all of the onions that we used, I would be dead by now and not turning 66. With properly covering the onion and refrigeration, you can eat onions left over in the refrigerator for at least a week, if not more.
If you are really worried about it, chop up the rest of the onion, put it in a Ziploc and freeze it. You can then put the leftovers in casseroles, stews, soups or anything that will cook the onion really well.