Spray a 13 x 9 inch pan with cooking spray and set aside.

Place corn syrup and sugar in a large saucepan. Heat over medium high until sugar is dissolved and mixture begins to boil. Remove from heat. Stir in peanut butter until thoroughly combined. Stir in Rice Krispies until well coated.

Spread the mixture into the pan and lightly pat it down. Don't compact them much, as it makes the bars too dense and hard, rather than soft and chewy!

Melt the chocolate and butterscotch chips in a double boiler or the microwave, stirring often. Pour over cereal mixture. Let stand until cool, then cut into bars and serve.