Add the chicken breast and marinate for at least 30 minutes, ideally 1-2 hours. While the chicken marinates, make the quinoa. Bring 2 cups of water to a boil (to cook one cup of quinoa.) Once boiling, stir in the quinoa. Turn down to a simmer and cover. Cook on low for 15 minutes. Turn off the heat and let sit, covered, for 5 minutes. Fluff with a fork.