Butter marble cake

Basic Butter cake:

230 g butter
180g sugar
250g flour, sifted
4 eggs
150 ml milk
150g milk chocolate

1) beat Butter and sugar till fluffy
2) add in egg, one by one
3) fold in flour in 4 batches alternately with milk
4) Split the batter into half
5) melt the chocolate (do not overheat the chocolate)
6) mix into half of the batter
7) Spoon into the pan or just mix it and then pour to the baking pan
8) sprinkle it with rainbow rice and chocolate rice

180C for 40 minutes

*If didn't want the marble effect, then just bake it like normal butter cake