Take a bowl and add maida, coco powder, salt,baking powder and set a side. Take another pan and pour oil in it and heat oil little bit and then add maida mixture and then add egg youlk mix well.

Add milk in better and pour vanila assanc drops and mix well with spatula.

Beat egg whit and make spongy add in the mixture pan and mix it well. Now prepare a baking pan with oil and butter paper then add prepare mixture in the baking pan and sprinkle on the top chocolate chips and cover pan with aluminum foil and bake 30 minutes.