½ cup butter
2 cups brown sugar
½ cup milk
¾ cup peanut butter
1 teaspoon vanilla extract
3 ½ cups confectioners sugar (or icing sugar)
Place the confectioners sugar in a large bowl and set aside.
Melt the butter on medium heat and add the milk. Stirring frequently bring to a boil and let boil for 2 minutes.
Remove from heat and add the peanut butter and vanilla extract.
Pour mixture over the confectioners sugar and beat until well blended
Pour into and 8×8 or 13×9 glass dish.
Chill until it hardens
Cut into cubes or pieces as desired, and serve