12 oz Butterscotch chips
1/2 c Chunky peanut butter
2/3 c Sweetened condensed milk
1/2 c Walnuts (chopped)
Combine butterscotch chips and peanut butter in top of double boiler. Place over, not boiling water until butterscotch melts; remove from water. Stir until blended; add milk and stir just until blended. Spread in foil-lined 8-inch square pan. Press chopped nuts into surface, if desired, and chill until firm. Cut into 1-inch squares.