Heat the milk on low flame and add the chocolate bars.
Keep stirring until it melts.
Let it cool.
Add this to the flour along with oil and knead a soft dough.
Add little water also as required while kneading.
Cover and keep aside for 15 mins.
Deep fry them just as you do for normal puris.
Serve them hot with cream nutella fresh fruits or even honey or better still just as they are. They taste equally yum on their own.