1 c. white Karo syrup
1 c. white sugar

Bring these 2 ingredients just to a boil but do not let it boil. Stir in 1 cup peanut butter, then add 6 cups Rice Krispies. Mix and place in a 9 x 13 inch or jelly roll pan. Melt together 6 ounces butterscotch chips and 6 ounces chocolate chips. Spread over the top of the Rice Krispies bars. Let frosting set before serving.