1 cup caster sugar (I use golden)
1 tsp vanilla extract
1 cup Baileys
1 cup sunflower oil
2 cups plain flour
2 tsp baking powder
2 tsp cocoa
icing sugar, for dusting
Using an electric hand mixer mix the eggs together with the sugar until white and milk shake like. Add the oil and Baileys mixing all the time, then add the flour mixed with the baking powder but not all at once.
Place about 3/4 of mixture in a buttered 25cm round baking tube pan, and mix the remaining mixture with cocoa. Then place it over a previous one in the pan.
Bake in preheated oven (fan 170C) for about 60 minutes. Leave it to cool down, remove from a pan and dust with icing sugar.