My First Princess Cake

For the cake

20cm diameter cake tin and pyrex bowl

grease proof paper

20ml (4 teaspoons) oil
240g (8.46 ounces) margarine or butter
3 cups or 660g (23.28 ounces) sugar
4  1/2 cups or 740g (26.10 ounces) plain flour
7 teaspoons baking powder
2 tsp salt
2 1/2 cups or 624ml milk
2 tablespoon vanilla essence
6 large eggs (59g (2.08 ounces) each)

For the butter creamand decoration

1/2 cup or 120g (4.23 ounces) butter 
2  1/2 cups or 330g (11.64 ounces) icing sugar
1-4 tablespoons of milk or creamWhite / Pink ready to roll icing ( Sainsbury's ) 

Go to this You Tube link to find out how to construct

http://www.youtube.com/watch?v=sfiOcsCe4Mo