^ âeucatastropheâ (US) / âeucatastropheâ (UK) in Oxford Dictionaries, Oxford University Press.
For cooked onions, you can find one answer here: http://www.stilltasty.com/fooditems/index/17825. 1  3-5 days in the refrigerator. 2  refrigerate withing 2 hours of cooking. 3  refrigerate in covered container or wrap tightly with heavy-duty aluminum foil or plastic wrap.
From the best way to store fresh herbs like basil and cilantro, to how long a cut onion will last in the fridge, weâve compiled a list of common leftovers and how long you can safely keep them. Follow the guidelines closely, and as a general rule, if youâre worried about something itâs safer to throw it out then risk getting a foodborne illness.