How to Make Marble Cake
1.Beat butter and sugar together until light and fluffy.
2.Gradually beat in eggs. Fold in all the flour except 1 Tbsp.
3.Divide batter in half.
4.Fold 1 tbsp flour in 1 half and the cocoa in the other. Place in alternate spoonfuls in a greased and lined 8" cake tin.
5.Bake at 180 degrees centigrade for 20-25 minutes. Turn out and cool.
For the Icing:
1.Beat the ingredients together. Spread over cake.
2.Decorate and serve.