^ âeucatastropheâ (US) / âeucatastropheâ (UK) in Oxford Dictionaries, Oxford University Press.
I agree compeltely with Glauber Rocha; @Shirley, although you asked about storing in the refrigerator, it is worth noting also that caramelized onions store very well in the freezer, up to six months. â Bruce Goldstein Dec 12 '11 at 16:01.
Keeping most onions out of the fridge works, but here are a few caveats: 1  Cut onions DO need to be refrigerated. 2  Peeled onions DO need to be refrigerated. 3  Refrigerate sweet or mild onions that have a high water content. This will extend their shelf life.