Prepare parchment paper with light cooking spray.

Melt butter and marshmallows in saucepan over low heat until smooth.

Remove from heat and stir in cereal until coated.

Press mixture into rectangle about half inch thick.

Layer fruit leather across surface.

Sprinkle chocolate chips and sprinkles evenly.

Roll tightly into log using parchment.

Cool 20 minutes then slice into pieces.

Drizzle melted white chocolate if desired and serve.