I have been reading through threads on here to get an idea of adding some PB2 into my Chocolate Porter. I am looking to add a subtle amount of peanut butter flavor to the beer, I don't want it to be in your face and the main flavor. I have a couple questions, based on what I read I will be adding it to the secondary (ive already brewed the porter so not much choice here now haha) and need some advice.
a) Boil some water, add it to the boiling water, cool it, drop it in the secondary, rack on top
b) buy some vodka, mix it, let sit a week, then drop it the secondary, rack on top
As far as amount, I read 6.5oz isn't enough, and it sounded like 13oz is a lot of flavor. I was thinking maybe 10oz for a more subtle flavor? Also I read it might not age very well in the beer, does anyone have any experience with this? Any other observations are welcome when dealing with PB2! Thanks!