In a microwave-able glass bowl, take nutella and butter and melt it for 1 and 1/2 minutes to 2 minutes. Add crushed biscuits and corn flakes to it and mix well.
Let it cool down. Make desired sized balls and arrange in grease paper.
Roll in coco powder to coat it well and arrange it.
Refrigerate for 3-4 hours before serving. Pop in your mouth and its just crunchy, chocolaty and more over easy to make!
Makes 8-10 truffles.
Adjust the timing for melting according to your microwave oven.
If you do not have microwave oven, then you can melt by double boiling method. i.e; heat a flat bottomed pan with water and keep this thing to be melted in a bowl and keep the bowl over the boiling water to melt it.
I reduced cornflakes amount and added a hand full of muesli, with more of nuts and raisins to it, so feel free to experiment with the ingredients.