In a bowl, shift the dry ingredients and keep it aside.
Melt the butter in a bowl. Melt the chocolate chunks too.
To the dry flours, add the melted butter, curds, cooking oil and mix well. Finally add the melted chocolate.
Grease a mug and pour the prepared batter.
Microwave for 1 minute.
Let it rest for 5 minutes before enjoying it.
I served chocolate sauce over it.