In a grander add oreo biscuits and Pudina leaves. And grind to thick paste add milk as re2to make the paste
Add baking soda and baking powder to the mixture
Take ceramic cup and grease it with butter. And add the cake batter to the cup
Break the Cadbury and put it the cup as per required
Preheat the cooker with water or salt at bottom, place the cup on the stand placed at the bottom
Cook for 15 mins on medium flame