I used melted cooking chocolate, that stuff that's blacker than black, and treacle and it was just far to bitter and overpowering, I managed to hold it together for long enough to finish the 30 pints but it wasn't easy lol, but you're right you live and you learn, maybe next time ill drastically reduce the amounts of both treacle and chocolate because I could tell it really wanted to be a good beer but it just couldn't do it so maybe just a hint of flavours would be more suited to it, I've had a treacle stout in the cupboard for a couple of months now but I'm gonna leave it till the winter this year so hopefully it can reach its full potential