step 1
First add the flour, sugar and cocoa into the mugs or the bowl; mix well.
step 2
Add the milk, butter/oil, chocolate chips and vanilla extract and stir well. Add the beaten egg.
step 3
Sprinkle with some chocolate chips and cover with a microwave proof cling film.
step 4
Microwave on medium-high for 1 minute and then for another 30 seconds. It should be cooked but moist and gooey in the middle.
step 5
Allow to cool and eat greedily with some cream or ice cream.