"Making fudge can be scary, because if you cook it one or two degrees over or under the right temperature you’re apt to have a giant fudge failure. But this recipe is hard to mess up: The ingredients are just stirred together and boiled on the stove for a few minutes (no candy thermometer required), then put in a mixer to beat in some powdered sugar. Just remember to stay away from fancy or natural peanut butters, as they won’t work here. Trust us: We tried, and they really did not work. What to buy: Though you may be tempted to use all-natural, unsweetened, or no-salt peanut butter brands, don’t. Stick with a commercial brand like Jif or Skippy...."