1 c. light Karo syrup
1 c. sugar
1 c. creamy peanut butter
6 c. Rice Krispies cereal
1 c. milk chocolate chips
1 c. butterscotch chips
In a medium saucepan on medium heat, slowly heat Karo syrup and sugar, stirring constantly. When the sugar is completely dissolved and it's bubbling a little, take it off the heat and stir in the peanut butter until the mixture is smooth.
Put the Rice Krispies into a large bowl (like your biggest Tupperware bowl) and pour the syrup and peanut butter mixture over it. Mix with a spatula until combined. Transfer the mixture to a greased, 9x13" pan and spread evenly.
For the topping, melt the chips together over medium heat on the stove while stirring constantly, or microwave if you prefer. Once the chips are completely melted, pour over the Rice Krispies. Spread the butterscotch/milk chocolate topping evenly with a spoon or spatula. Cool until the topping has hardened.