1/2 cup butter 2 1/4 cup brown sugar 2/2 cup milk 3/4 cup peanut butter-creamy or crunchy 1 tsp. vanilla 3 1/2 cups confectioners sugar
Melt the butter in a medium pan over medium heat. Stir in brown sugar and milk. Boil for 2 minutes stirring frequently. Remove from the heat and stir in the peanut butter and the vanilla. In a larger bowl, pour this mixture over the confectioners sugar. Beat until smooth and pour into a 8x8" pan. Cool and then cut.