For what it's worth I came across this recipe on a survivalists forum.
Crystal Light
Grain Alcohol
Water
Add 28 oz filtered water to your container, add 4 oz grain alcohol and half a package of crystal light. Shake, enjoy. This is equivalent to drinking 5 or 6 beers. Works great and comes in handy on extended trips or for ultralight trips.
(Submitted by Lou, May 2000)