Fold in the self raising flour and cocoa powder into the mixture, then stir in 4 tbsp water and the finely grated zest of 1 orange. Pour mixture into a lined 900g/2lb loaf tin and bake as above.
Meanwhile, remove the zest of 1 orange using a zester and blanch in three changes of boiling water. Squeeze the juice of the orange into a pan, add 3 tbsp icing sugar and heat until the sugar has dissolved, then add the blanched orange zest and simmer for 3 minutes. Prick the surface of the cooked sponge, pour over the hot syrup and leave to cool.
Recipe: The Freedom Food Celebrity Recipe Collection