put the peanut butter and butter in a big microwave safe bowl and wrap tight with stretch wrap

cook on high for two minutes, stir re cover and cook two more minutes

stir in powdered sugar and vanilla with a wooden spoon until all sugar is gone

put fudge in any kind of pan you want lined with foil or parchment paper. push evenly into pan and oak it down

place in the fridge for a couple hours. cut and serve