Spray a 9- by 13-inch pan with PAM Cooking Spray.

In an extra large microwave-safe bowl heat butter and marshmallows on high for 3 minutes, stirring after 2 minutes. Stir until smooth.

Add cereal. Mix until well coated.

Spray one hand with PAM Cooking Spray and use your hand to evenly press mixture into prepared pan. Cool.

Use a long serrated knife sprayed with PAM Cooking Spray to cut into 12-24 squares.

Put candy melts in two Ziploc bags, microwave candy melts at 40% power for 1 minute. Knead candy in the bag. Continue to microwave and knead at 30-second intervals until smooth and completely melted.

Snip off a small corner of the Ziploc bag and drizzle the melted candy on top of the crispy treats.