I tried to put hazelnuts in the boil for my porter and I'm getting none of that flavor. I want to try and make my own extract but I have a few questions I couldn't find answers to anywhere. I want to impart as little flavor as possible from the added liquor so I am thinking of using grain alcohol. When people cook with extract they cook off the alcohol, is it possible to do this once you have aged your alcohol with whatever you want to extract? I want to get as much of just the pure flavor as I can.