I had made a post a few weeks back, got some feedback on the idea of a peanut butter porter and now its made!
The peanut butter doesn't taste like peanut butter as in JIF or Skippy. Because I used an all natural peanut butter (only peanuts, no salt, no additives) it actually tastes more like a nut porter, but the nut is clearly a peanut. It's like having the roasted nuts from a ballgame in a glass.
As for the taste being too overpowering or too subtle, my father-in-law tried it and couldnt taste the peanut, one of my friends thought it was too much peanut. Go figure.
The color is nice and dark, just what I wanted. The only dissapointment is that the head barely lasts a minute. Someone mentioned that it might do that because of the oils in the peanut and I think they're right.
Now if I could only get chocolate in there...