Hi-- I've made Rhubarb Vinegar! It was a happy resolution after I'd been attempting Rhubarb Cordial, got called away for several days, had something slightly fizzy happening so decided to dilute the mixture, keep stirring for aeration, and eventually the "wine" turned vinegarry and I got a very delicious condiment. I wrote it up here:
http://kitchencounterculture121.wordpress.com/2013/08/15/scrap-vinegars/
Often the fruit vinegar one reads about in Britain are sugared fruit purees mixed with vinegar; they are ok, but this is a different method and I think nicer for cooking...
