Orange cup cakes (Fail version)

Hi there, this is fail version cup cake. But I still want to share with you all. It was nice in taste. But it turn as Apom instead of cake. You can see the surface of cake is not smooth as cake. I think i should reduce the flour.

Ingredients:-

3 cups self-raising flour
1/2 tsp baking powder
1 cup vegetable oil

1 cup fresh milk
1 cup castor sugar
1 eggs, lightly beaten
1/2 cup orange juice

Method :-
1) Sift flour and baking powder together.

2) Stir in the egg, milk and sugar. Add in the oil and stir until well combined.

4) Then fold in the sifted dry ingredients alternately with the orange juice.

5) Fill plastic moulds with the mixture.

6) Steam until well-risen.