Wash the salmon and dab dry. Remove any bones. Sprinkle with lemon juice and Worcester sauce. Mix coarse salt, sugar and pepper and sprinkle evenly. Wash and chop the dill and press it firmly against the salmon.
Cut through the salmon side once and lay it on top of each other with the skin sides facing outwards. Wrap in foil and weigh down with weights and leave to stand in a cool place for at least two days.