step 1
Preheat oven to 180c/ fan
step 2
Beat butter then add sugar and beat mixture until light and fluffy.
step 3
Sift in self-raising flour and baking powder and mix together.
step 4
Spoon roughly halve of the mixture into another bowl.
step 5
In one bowl add cocoa powder and mix in. After that, mix in 2 tbs in each bowl and mix together.
step 6
Place mixtures from each bowl in turn into a cake tin.
step 7
Cook for 20-25 mins. Then place to cool for 15 mins and take out of cake tin. Slice and enjoy!!!