2tbspCoco powderor u can use cooking chocolate also, dark
Instructions
Preheat the oven to 180 degrees.
Cream the sugar and butter with a mixer till white and fluffy.
Add the eggs and vanilla and mix till it is well blended.
Fold in flour (use a wooden spoon and gently add in).
Add in some milk so that the batter has dropping consistency.
Take 1/3 of the batter and put into the bowl where your chocolate mix well.(but don`t over mix)
Grease the cake tin and layer the bottom part with yellow batter, then, drop the chocolate and yellow batter alternately. After that twirl with a chopstick.
Bake at 180 degree Celsius for until a toothpick inserted on the top of the cake comes out smoothly.