1 c. dark Karo syrup
1 c. sugar
1 1/3 c. creamy peanut butter
6 c. Rice Krispies
1 c. chocolate chips
1 c. butterscotch chips

Over low heat, soften and stir syrup, sugar, and peanut butter. Add Rice Krispies and mix together. Put in 9 x 13 inch buttered cake pan and pat in firmly. Then melt chocolate chips and butterscotch chips together at very low heat (or in microwave), stirring until smooth. Spread on bars immediately.