1 c. light Karo
1 c. sugar
1 c. peanut butter
6 c. Rice Krispies

Bring Karo and sugar to boil and remove from heat. Add peanut butter and stir until blended. Add Rice Krispies and mix well. Spread in buttered 9"x13" pan. Melt 1 (6 oz.) package chocolate chips and 1 (6 oz.) package butterscotch chips and spread over mixture in pan. Cool and cut.