Add the vegetable broth to the saucepan, then sprinkle in the garlic powder, cumin, coriander, and salt. Stir the quinoa to give it a quick mix and bring it to a boil. Once boiling, reduce the heat to low. Cover the quinoa and let it simmer until it's tender and most of the liquid has been absorbed (about 15 to 20 minutes). When it's done, fluff it with a fork and set it aside.