Line a 13x9 inch pan with foil and grease or spray the foil with cooking spray.

In large microwavable bowl, microwave butter on high until it melts (about 40 seconds).

Add marshmallows; toss to coat, then heat for 1 to 1 ½ minutes, stirring every 30 seconds until marshmallows are completely melted and mixture is well blended.

Add cereal, red pepper and cinnamon; mix well. Transfer to the pan and spread evenly.

In small microwavable bowl, microwave chocolate chips on high, stirring every 30 seconds until melted. Transfer to a zipper bag, cut small corner off bag, and pipe chocolate on top of bars. Chill for 5 to 10 minutes to set chocolate.

Lift bars from pan and cut into squares.