I got this recipe off of allrecipes.com
1 cup light corn syrup
1 cup sugar
1 cup peanut butter
6 cups Kellogg's® Rice Krispies® cereal or Kellogg's® Cocoa Krispies™ cereal
1 cup semi-sweet chocolate morsels
1 cup butterscotch chips
1.Place corn syrup and sugar into 3-quart saucepan. Cook over medium heat, stirring frequently, until sugar dissolves and mixture begins to boil. Remove from heat. Stir in peanut butter. Mix well. Add Kellogg's® Rice Krispies® cereal. Stir until well coated. Press mixture into 13 x 9 x 2-inch pan coated with cooking spray. Set aside.
2.Melt chocolate and butterscotch chips together in 1-quart saucepan over low heat, stirring constantly. Spread evenly over cereal mixture. Let stand until firm. Cut into 2 x 1-inch bars when cool.