Oh, pretty much any hard candy will last forever. My great grandmother had butterscotch in her jar that had been there for decades.
"When life gives you lemons, just say 'No thanks'." - Henry Rollins
Bleu cheese. I mean, isn't mold the whole point?
culinary term. Did you go to cooking school?
People will miss that it once meant something to be Southern or Midwestern. It doesn't mean much now, except for the climate. The question, “Where are you from?” doesn't lead to anything odd or interesting. They live somewhere near a Gap store, and what else do you need to know? - Garrison Keillor
p.s. Did you dig this up to just ask that question?
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WSU MUP Student beat me to it, but honey is the food that comes to mind for me. I don't know if I would call salt "food" though it is essential for life. But its just an inert mineral and we eat it just as it naturally occurs. Honey, on the other hand, has been processed (albeit in a rather disgusting way by the bees) and even the producers consider it food.
Beyond that, I am impressed with the staying power of all things pickled (from sourkraut to, well, pickles). Maybe salad dressing?
The purpose of life is a life of purpose