Spoon cake mixture into cake tin and bake for about 35 minutes or until an inserted skewer comes out clean. Allow to cool before icing. Melt the chocolate in a heatproof bowl over simmering water ...

Line a 10 inch cake tin with parchment paper. Place the sugar, chocolate, butter and water in a saucepan and cook gently until the chocolate and butter have melted. Cool Whisk in the buttermilk ...