Ingredients
Method
1.Grease a 23cm square slab pan, line base with paper; grease paper.
2.Combine butter, sugar, eggs, blended cocoa, soda and water, apple and flour in processor, process until mixture is smooth. Pour into prepared pan.
3.Bake in moderate oven for about 1 hour. Stand 5 minutes before turning on to wire rack to cool. Spread cold cake with icing.
4.Meanwhile, to make chocolate icing; Sift icing sugar and cocoa into small heatproof bowl, stir in butter and enough milk to make a stiff paste. Stir over hot water until icing is spreadable.