Soft butter mix with a mixer, add the salt and cut into fine strips leaves. The flowers are soaked for about 10 minutes in salted water to float to any flies thereof. Shake well water and add to the butter. With foil forming the butter roll and allowed to set hard in a refrigerator. Available to roast meat, steaks, barbecue, spreads of warm bread and so on.. The taste of nasturtium is very intense and slightly bitter, as the flavor is extremely pleasant. All parts of the plant are edible and contain many vitamins and natural antibiotics.