Using a fine grade strainer or colander (something where the rice won’t just fall through the holes), rinse the rice until the water runs clear.
Place 2 cups of water and the rinsed sushi rice into a medium saucepan and bring to a boil.
Once boiling, reduce the heat to low, cover, and allow to simmer for 20 minutes.
At the end of 20 minutes, the rice should have absorbed all of the water. Remove from heat and allow to cool.
Combine the rice vinegar, sugar, and salt in a small saucepan. Whisk the ingredients together over medium heat until the sugar dissolves.
Allow the vinegar mixture to cool and then pour over the rice.
Stir to combine and allow the rice to absorb all of the vinegar mixture.
Let rice cool.