I’m presently making my own vanilla – do not know if you can use brandy.
I used 2 cups of SKY vodka* and a vanilla bean. I put both into a jar, covered and let steep. After 5 weeks, I added another vanilla bean. It seems to be just fine – a bit weak at this point but I like a very strong vanilla and usually buy the double strength from my spice house so for anyone else it may be ok. I simply added another
vanilla bean and am steeping it somemore.
*Note: I am very sensitive to vodka. It usually gives me intense migraines. I have found SKY vodka to not produce the same effect so that is what I use – but it is a weaker proof vodka than would normally be sued. I would suggest using ABSOLUTE or something like it.