The clean mackerel washed well and add salt, leave to stand for several hours. In the belly put a piece of carrot, celery, parsley sprig, smeared with sunflower oil inside and outside and every screw in foil. Put in pan and bake about 30 minutes in the oven. Unscrewing of paper still warm rank in the dish, sprinkle with chopped parsley and lemon juice. Serve with potato salad.