Put the sunflower seeds, water & salt into a pot, cover & let simmer for 1.5 hours. When well cookked, crush the seeds to amke a paste. Add the corn flour, 1 tablespoon at a time to thicken. Work with your hands; cool a little. Make small, flat pancakes of approximately 13 cm diameter. Heat oil & fry both sides, adding more oil if necessary. Drain well & eat.