I saw this a few times around here. I would like to try it, Does anyone have a recipe, Or any other info on this? Sounds like a good one to have on tap, right next to A choclate cream stout.
If you look up at the top of the page, there's a link to the forum's recipe database. Sure enough, there's a recipe for peanut butter stout in the stout section: https://www.homebrewtalk.com/showthread.php?t=47419