1)Mix together sugar dust and butter. 2)Add maida, baking powder, soda, chocolate powder and mix well. 3)Add coco cola and vanilla essence and mix well again. 4)Beat properly, until it is done. 5)Bake the cake at 250 degree C for about 45 mins. 6)Check if it is done by inserting a toothpick, which should come out clean, if done.