We occasionally need peanut butter but we don't like all brands. Some have added sugar, most have added oil. And let us not forget - you don't have to read the list of ingredients if there isn't one.
Well I have heard that you can just blend roasted peanuts until they become peanut butter.
So I tried. And it's fine. So we now have a jar of home-made peanut butter, made from peanuts.