First be sure nobody who is going to eat this with you gets sick from peanuts. Then be sure you have what's called a food processor or chopper, any size is okay.
This is going to be really fast! You need to have 1/2 pound of roasted peanuts (if they have salt that's okay, some people like salty tastes). You need 3 tablespoons of nice honey and 3 tablespoons of peanut oil. And of course a nice clean jar to put your utter utter peanut butter in.
So here's what we do. We put the peanuts into the food processor WITHOUT putting our fingers in it. We don't want them to get sliced, a really big OOPS! Put the lid on the food processor and push the GRIND or CHOP button to make it whiz for 6 to 10 seconds. Stop, open the lid and peek inside. Are the peanuts getting all chopped up? Good! Now put in the honey and oil- -never your fingers. Careful. Put the lid back on and whiz away again until you see peanut butter inside. If it is not creamy enough put in one more tablespoon of oil and whiz away until you see peanut butter you can't wait to eat.
One more very important thing: put your peanut butter in the refrigerator when you are not eating it. And eat it very soon!