Ingredients
1/2 cup butter
2 1/4 cup brown sugar
1/2 cup milk
3/4 cup peanut butter
1 tsp vanilla
3 1/2 cups confectioners sugar
Preparation
Melt butter in a medium saucepan over medium heat. Stir in brown sugar and milk. Bring to a boil and boil for 2 minutes, stiring frequently. Remove from heat add vanilla and peanut butter. Pour over confectioners sugar, beat until smooth. Pour into an 8x8 dish, chill until firm.