It is made by forming various pureed deboned white fish with either natural or man-made additives and flavorings into distinctive loaves, which are then steamed until fully cooked and firm. These are sliced and either served unheated (or chilled) with various dipping sauces, or added to various hot soups, rice, or noodle dishes. "Kamaboko" is often sold in semicylindrical loaves, some featuring artistic patterns, such as the pink spiral on each slice of "narutomaki", named after the well-known tidal whirlpool near the Japanese city of Naruto. In Miyagi Prefecture, is a regional "kamaboko" variation, pale white in colour, formed in the shape of bamboo leaves and often lightly grilled immediately prior to serving.