Onigirazu (Japanese rice sandwich)

Rinse the sushi rice, then put it in a small saucepan. Pour an equal amount of water over it, distribute it evenly, cover, and bring to a boil.

When the water starts to boil, reduce the heat to the lowest setting and cook for 10 minutes. Then turn off the heat and leave it covered to steam for another 5 minutes.

Add the rice vinegar, sugar, and a pinch of salt to the hot rice, then gently fold together. Spread it out on a plate and place in the fridge to cool.