Preheat the oven to 180*C

Gather all the ingredients

Beat butter,sugar,egg and vanilla essence until it looks like this

Sift flour,baking powder and cocoa together into the mixture

Fold into beaten mixture until it looks like this

Grease the baking tray with butter

Spread the mixture into the baking tray

Mix brown sugar, cornflour and cocoa together

Sprinkle the sauce mixture over the pudding mixture

Pour boiling water over a back of a spoon on the pudding

Put the pudding in the oven for 35 minuets

Take it out of the oven

Serve it out and enjoy