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225 g/8 oz butter or margarine, softened
225 g/8 oz/2 cups plain (all-purpose) flour
225 g/8 oz/2 cups wholemeal (wholewheat) flour
450 g/1 lb/2 cups soft brown sugar
350 g/12 oz black treacle (molasses)
10 ml/2 tsp bicarbonate of soda (baking soda)
450 ml/2 cups boiling water |