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["If you don't have self raising flour, use plain flour with 1 heaped teaspoon of baking powder added to it.", "Preheat the oven to 170C/340u00b0F.", "Butter a 20cm/8"" cake tin. Line the base with baking paper.", "Put the butter, sugar, water, cocoa and bicarb in a saucepan and bring to the boil, stirring constantly.", "It goes a bit volcanic so once the mixture rises, be prepared to take it off the stove immediately. Set aside to cool.", "Beat the eggs in a large bowl.", "Sift in a bit of the flour and then mix in some of the chocolate. Continue until all the flour and chocolate are incorporated. If you do this a bit at a time, the flour will mix in easily without overmixing and making the cake tough.", "Pour into the prepared cake tin and bake for 45 minutes.", "Cool on a wire rack.", "Ice with your favourite icing or leave un-iced.", "To make a larger cake, use 3 eggs and scale everything else up by 50%. (BTW, this is a maths problem that I give to my kids!).", "Edited to include icing: Kookaburra referred to the icing in my original recipe I posted on the Australia/New Zealand forum. Here it is. 375g icing sugar, 1.5 tablespoons cocoa, 185g butter, 1.5 tablespoons water (hot works best), 5 drops vanilla. Cream butter and half the icing sugar. Add hot water, the rest of the icing and cocoa sifted together and the vanilla. Beat until smooth."]
