Line two baking sheets with parchment paper and set aside.

Melt the butter, chocolate chips, caramel chips and marshmallows in a microwave safe bowl by microwaving this mixture in 30 second intervals (stirring between each interval) until all the ingredients are melted and combined.

Gradually add in the Rice Krispies cereal and mix until the cereal is completely covered.

Use a large scoop or cookie scoop to drop the batter onto the lined baking sheet.  Flatten the cookies out slight.

Allow to rest at room temperature until set, about 20 – 30 minutes.