Karen from Waikato writes,
I was dismayed to see that Pics peanut butter was $6 at the local supermarket so I decided to buy blanched peanuts and I cooked them in the oven with a little oil until lightly brown then popped them into the small bowl that came with my blender stick and a very sharp blade and I whizzed the peanuts up. I added oil until it was the consistency of peanut butter and added a little salt and it worked out that I could refill the peanut butter jar for a cost of $2. You could buy peanut oil if you wanted but I just used sunflower and it tasted really good. Just be careful not to overdo it with the oil when mixing it.