Sushi chefs in Japan train for years just to master the art of making sushi rice alone. Their recipe, method, and technique for making sushi rice is so precious that they often do not allow anyone else in the kitchen to make the rice. Every sushi chef has different ingredients and techniques for their rice. These are the methods that I have been taught for making sushi rice.
First you will need:
-Hangiri (wooden tub for mixing sushi)If you don't have one, I suppose a very large, wide bowl should do just fine as a substitute
-Rice paddle
-Bowl for transferring sushi
-2 cups medium/short-grain white rice (dry measure)
-1/3 cup Sushi-Zu (Recipe for sushi-zu is below)
Sushi-Zu Recipe:
Mix the following ingredients in a container.
-7 part rice vinegar
-5 part white sugar
-1 part salt (2 parts if you're using sea salt)
-1 piece konbu (dried kelp)
Cover the sushi-zu and leave it in the refrigerator for a minimum of 2 weeks. This will allow all the flavors to meld together. If you're running short on time, you may also combine the vinegar, sugar, and salt in a small saucepan over low heat, until the sugar and salt dissolve. You can always double up, or make more sushi-zu in advance if you're planning on making a lot of sushi in the near future.
Now to make the sushi rice:
Take your hangiri, and using a wet cloth, soak the wood all around the bottom and edges. This will prevent the rice from sticking while you're mixing.