You can get rid of a lot of the oil by crushing them between paper towels and then roasting them on parchment paper (the paper absorbs a lot of the oil as it cooks out) You can skim oil off the surface as well as transferring to secondary from underneath the oil layer. Boiling the nuts releases the most oil; I have heard of mashing, boiling, and dry addition of nuts (including peanuts) without incidence but that is all hearsay.
I typically only add this much work to brew day if I am feeling adventurous. Or when I really want to learn something because it affects my motivation to clean up afterwards.
Maybe I'll get some of the powder and try it with the second runnings from an RIS I plan to brew this weekend.
Thanks for the tip; I should have guessed that there would be preservative free PB powder. I am assuming last 10 min of boil and between .5-1oz per gallon?
just took a look at your blog; good stuff to be certain. I too am a brewing ginger dad w/ leprechaunesque facial hairs. Though it appears you have quite a bit more experience w/ at least the brewing and fatherhood! Cheers to you sir