In the Microwave Mug, add the flour, drinking chocolate and fluff well.
Next, add the chocolate chunks, and combine. Now add the melted butter and mix.
Depending on the consistency, add the milk and make sure your batter is not hard. You can add little bit more depending on the consistency.
Microwave on high for a minute, check and again Microwave for another minute.
I microwave for only 2 mins and it was done.
Serve with chocolate sauce or icing sugar sprinkled on top.