Stir in the peanut butter and vanilla ... Then pour over the melted chocolate, tilting the tin back and forth a bit so that the whole thing is evenly covered. Pop in the freezer for 30 minutes ...
Add the butter and peanut butter to another microwaveable bowl and cook, covered, on High for 30 seconds ... raspberries or strawberries, or chocolate pieces to the brownies before cooking.
Skip the store-bought candy and try making your chocolate-covered peanut butter cups with jelly instead. They only require three ingredients! Get the Peanut Butter and Jelly Cups recipe.