1 c. Karo syrup
1 c. peanut butter
1 c. chocolate chips
1 c. sugar
6 c. Rice Krispies
1 c. butterscotch chips

Heat syrup and sugar together over low heat (or in microwave) until sugar is dissolved. Stir in peanut butter. Mix in Rice Krispies and spread in a 9x13 inch pan or dish. Melt chips together and spread over top. Stand (or chill briefly) until topping is firm. Cut into squares.