- STEP 1
Preheat the oven to 180 degrees.
- STEP 2
Beat the butter and sugar together. Add in the eggs one at a time, mixing thoroughly after each one.
- STEP 3
Add in the vanilla extract. Now mix in the flour one spoonful at a time, making sure that all the ingredients are mixed in. Leave half the mixture aside.
- STEP 4
With the other half of the cake mixture, add in the cocoa powder. Now put both batters into a greased circle tin, like a half moon.
- STEP 5
Marble the batters by using a spatula and swirling it around through the mixture. Bake in the oven for 40 minutes.