1 cup creamy peanut butter
1 tsp. vanilla extract
Carefully remove the bowl from the microwave. Add the vanilla and confectioners’ sugar to the bowl. Stir with a wooden spoon or spatula until evenly combined.
Transfer the mixture to the prepared pan and spread into an even layer. Place an additional piece of parchment directly on the surface of the fudge. Refrigerate until cool, at least 2 hours. Use a large knife to cut into 1-inch pieces. Store in an airtight container at room temperature for up to 1 week.