|rice (see "Rice and Miso Soup")||2 cups|
Dissolve sugar and salt in vinegar and store in a glass container. Cook rice, using equal amounts of rice and water (a little less water than normal to make the rice harder). After the rice is fully cooked, let stand for about 10 minutes.
Empty rice into a large, flat container and sprinkle about half the vinegar dressing. Mix the rice and vinegar with cutting strokes, fanning the rice at the same time to cool quickly. Taste the rice, adding more vinegar to enhance sharpness (the vinegar dressing should be enough for 3 to 4 cups of rice).