I stayed away from this homemade necessity because I thought you had to have a fancy peanut butter making contraption. I ofcourse found a tutorial on pintrest that used a food processor! I bought a $2.50 pound of already shelled peanuts. You could purchase and unshell them yourself cheaper, but I didn't want to waste my energy on something that I MIGHT not even like how it turned out. The contrainer I purchased was a 1lb contrainer.
I just emptied the whole thing into the food processor. Once it started to ball up (it look like it's sticking to the sides) I added the 1 tbsp of oil (I used vegetable oil - they caution to not use anything other than vegetable oil or peanut oil JUST because it might alter the taste) I let the processor go for about 2 minutes and decided it needed another Tbsp - so I incorporated that. Now this time I left it 5 minutes because it was still a little chunky and I KNEW my daughter wouldn't eat it. It finally got smooth enough that my daughter might not notice it wasn't store bought.
I kept tasting and adding sugar/salt till I got the taste I wanted. It does have a different taste than the store bought stuff initially but the after taste, tastes just like peanut butter. Weird I know. We'll see how the REAL critic in my house likes it soon enough!