I have made two batches of Vanilla porter, a recipe that I pieced together, I used, two vanilla beans split and scraped and droped the scrapings, and bean carcass in the last 15 of the boil, then I put one bean split and scraped into the primary, I don't secondary, so I leave it for 3 weeks, and so far I can't make enough to keep up with demand, I got 6.5 gallons in primary now, and got another two to go before bottling. This will be a year around brew for me.