I have tested many chocolate cake recipes but this has come up trumps from them all. Altered from Sophie Gray Destitute Gourmet. It is moist and makes a good amount. It is the only chocolate cake I make now.
Preheat oven to 180°C Grease cake tin. Put all the main ingredients into a food processor and mix. Pour into the prepared tin. Bake for at least 50 minutes. (I found I need less time than this). The cake will rise a lot and when cooked the centre should spring back when gently pressed.
ICING: Mix above ingredients together with enough water or milk to make the icing consistency right. NB: You can make extra icing for a filling if you cut the cake in half horizonally.