In a large sauce pan melt butter over low heat.
Add marshmallows and stir until completely melted.
Remove from heat and add your Cocoa Krispies cereal. Stir until well coated.
After the cereal and marshmallow/butter mixture is well combined, add in the crushed cookies and Mallow Bits, stir well to combine.
Using a buttered spatula or wax paper, evenly press mixture into a 13×9 pan coated with cooking spray (or lined with wax paper).
Cool, cut, serve, consume, enjoy!