Fun chocolate mosaic

This is a quick and easy yummilicious dessert which is ready in minutes...... you need Marie biscuits, cadburys coco powder, cold milk, and powdered sugar.... crush Marie biscuits coarsely( a big packet), add two big tablespoons of cocoa powder, powdered sugar according to taste and mix together with a spoon.... pour cold milk into the mixture gradually..... mix gently.... the mixture should be of the consistency of molten lava( strange comparison, but I am drooling at the imagery of a huge volcano spitting out chocolate lava!) ...... pour the mixture in a rectangular aluminum tin.... let it set in the fridge for two hours....... when set, cut into slices... add heavenly touch by pouring gooey chocolate sauce and sprinkling loads of chocolate rice on top..... PURE SIN PEOPLE!