Break apart double chocolate muffins to fit the bottom of the pan
Break up crunch bars into a bowl
Add warm milk over the crunch bars
Stir until melted
Mix cream cheese, condensed milk and cool whip until completely mixed
Start layering: muffins at the bottom, cream cheese frosting, then melted crunch bars
Put pans into the fridge overnight
Next day, sift cocoa powder on top
Serve immediately