Alcohol actually, with a few additives... like vanilla beans. Apparently I can make vanilla extract this way. A bottle of alcohol, in this instance it's my dear departed Dad's home brew, 40 proof at least. I have added my old, used vanilla beans and a small bottle of vanilla extract that I purchased at the supermarket. I am not to shake this bottle around from time to time and leave it in a cool, dark place for a month or so. Whenever I have anymore used beans I will add them, I think I was supposed to start with at least six beans but I did not count.
I will keep you posted on this one... V x