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

Grease a 13 x 9 inch pan. In large saucepan, combine all except Rice Krispies over low heat. Stir constantly, bring to boil and boil 3 minutes. Remove from heat. Add cereal; stir. Press into pan. Frost with 6 ounce chocolate chips and 6 ounce butterscotch chips melted together.