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175 g/6 oz butter
150 g/5 oz light brown sugar
5 ml/1 tsp vanilla essence (extract)
3 eggs
45 ml/3 tbsp cocoa (unsweetened chocolate) powder
25 ml potato flour
100 g/4 oz/1 cup self-raising (self-rising) flour
75 g/3 oz plain (semi-sweet) chocolate, coarsely grated |