The main ingredient in a traditional Japanese sushi roll is vinegared rice, known as "shari" or "sumeshi." This rice is prepared with a mixture of vinegar, sugar, and salt to give it a distinct flavor and slightly sticky texture. Sushi rolls, or maki, often include various fillings, such as raw fish (like tuna or salmon), vegetables, and sometimes seaweed (nori). The combination of flavors and textures makes sushi appealing to many. The preparation method, presentation, and the cultural significance of sushi elevate it to a culinary art form in Japan and around the world.