I will post this here and "survial scenario".
Was watching a news channel that shall remained unamed and there was this lady who was talking about an interesting product is used to help malnourished children. A peanut based paste, that is easily squeezed out.
Here is the wiki on [url=http://en.wikipedia.org/wiki/Plumpy'nut]Plumpy'nut[/ur]
the website for the company that makes it,
Nurtiset
I could see using this for other purposes, like survival rations. It contains pretty much all you need.
An alternate produce is,
Unimix
Unimix, however, has to be cooked. In a survival scenario, plumpy'nut would work better. No fire to draw attention and all that.