Measure out 6 cups of Rice Krispies into large bowl.

Measure out 1 1/2 cups of peanut butter, add to bowl with cereal.

Heat 1 cup Karo syrup and 1 cup sugar to a boil in a 2-quart sauce pan, stirring constantly. Remove and pour on peanut butter (this will melt PB and make stirring easier).

Stir until cereal is covered, spread mixture into 9x13 pan, set aside.

Melt chocolate and butterscotch chips in microwave (1 minute, stir, repeat) or over medium heat on stove (stir constantly). Spread on top of cereal mixture.

Refrigerate for 1 hour. Bars will cut best when they've warmed to room tempreature.