A knife made specifically for common peanut butter problems.
It is a knife with a generous handle, long shaft and bulbous end that is designed to minimize issues commonly found with natural peanut butter.
When you go to stir your peanut butter you get it all over your knuckles, you can't get the peanut butter from the corners of the jar, you can't get big scoops of it out at one time..
A peanut butter knife solves these issues due to the long blade and specially shaped tip.
Enjoy the clean hands afterward.