Rinse the quinoa with cool water until the water runs clear.
Place the water in a saucepan and bring it to a boil, then add the tamari or soy sauce and stir.
Let the quinoa boil for about 2 minutes. Cover and simmer gently for 10 to 15 minutes or until all of the water is absorbed. The quinoa is done when it will look like it has popped open and it's not mushy, but delicate and perfectly fluffy.
Use immediately or let it cool at room temperature and store in a sealed container in the fridge.