Sometimes the planets align, and things come together. One of the kitchen tools that I grew up with is a hand grinder, and I don't think I could cook without it. But sometimes, we never really look at familiar things. I'd never, ever, paid any attention to this particular choice of cutter wheel. See what it says?
Well, I also still had about a half pound of raw peanuts. These were the last of a larger bag that SIL, Loretta, brought to us at Christmas. They were getting stale, and so I decided to bring those two entities together.
So, I began. Wow! I'm not a weakling, but I sure learned that if I were going to make my own peanut butter on a regular basis, I'd gain a muscle or two. Nevertheless, I soon had a dish full of little maggoty-looking peanut shreds. It didn't appear to have enough oil, so I went right to the internet.
Yup, you have to add extra oil. I didn't have any peanut oil, so I just used Canola. It seems fine, but it took more oil than I expected to make it spreadable.

I also ground up some salted peanuts to add to the raw ones. It ended up with a pretty good taste. But I like crunchy peanut butter. So I changed cutter wheels, and ground up one more little pile of peanuts.
Overall the background texture is much grainier than store peanut butter, and the peanuts that were a little stale make... stale-tasting butter. That's not exactly a surprise. But I'll eat it. I was surprised at how much butter I ended up with from what didn't look like a very big pile of peanuts.
Would I do this again? Maybe. I'll tell you after I eat up this batch.