1/2 cup margarine 1 lb light brown sugar 1/2 cup milk 3/4 cup smooth or crunchy peanut butter 1 tsp vanilla 1 lb confectioners sugar
In medium saucepan, melt butter; stir in brown sugar and milk. Bring to a boil. Boil and stir 2 minutes. Remove from heat, stir in peanut butter and vanilla. Mix in confectioners sugar slowly. Beat until smooth. Spread into a buttered 9x13 pan or plate. Chill until firm if desired. Cut into squares. Makes 3 pounds.