OK Beauty, you beat me with the 31 year old brownie, but my Mom has a 20+ (not totally sure of the year) year old chocolate hockey player in the fridge. I think I was 15 so it could be about 23 years old.
I have been a Buffalo Sabres fan since I was a kid and bought this chocolate hockey player - #22 Lindy Ruff - my favorite player when I was a teenager. I swore that I would never eat that chocolate until the Sabres won the Stanley Cup! I had forgotten about that until a few years ago when the Sabres went to the finals and my Mother pulled it out of the fridge and asked me if I was going to still eat it! Needless to say, it will probably stay in that fridge forever! Funny thing is it is over 20 years ago and Lindy Ruff is now the Sabres coach!
Now in the freezer, I just found 2 cans of Bacardi mixer that were from 1999! I do clean my freezer out honest, but those cans were on the door forever. I didn't think they were that old - time flies!