To cook quinoa, you simply stir it into your liquid of choice, cover and simmer over low heat until done. The ratio is 2 cups of water or other cooking liquid to 1 cup of quinoa. Water is the easiest, cheapest and healthiest choice; it’s lowest in sodium and, generally, free. Other supermarket staples, like low-sodium chicken, mushroom or vegetable broth, are as easy to use as water and they can add a lot of flavor. You could even cut some of the stock with a splash of dry white wine, using ½ cup of wine plus 1½ cups of broth for every 1 cup of quinoa.