|One small step for man...|
As a kid, after visiting almost any natural history or science museum, a package of freeze-dried "astronaut" ice cream was one of my favorite treats. I still like it today, actually, even though I think it's mostly the nostalgia and not the taste. Via BoingBoing, I found these instructions for making your own, homemade freeze-dried ice cream, assuming you have access to a vacuum pump and some laboratory glassware. Although it seems like a bit of work, the limitless flavor possibilities are intriguing. Also, I suppose you could use this setup to freeze-dry all sorts of foods, not just ice cream. Tasty.
(Image: astronaut ice cream, a Creative Commons Attribution 2.0 image from Rakka's photostream)