To make quinoa perfectly fluffy, follow these key steps:

1. Rinse 1 cup of quinoa thoroughly under running water to remove its bitter coating (saponin).
2. Toast the rinsed quinoa lightly in a pan with a bit of olive oil for 2 minutes to add a nutty flavor (optional).
3. Add 2 cups of water or broth and ½ teaspoon of salt to the quinoa in a pot.
4. Bring to a boil, then reduce heat to low and simmer covered for about 15 minutes, until all liquid is absorbed.
5. Remove from heat, keep covered, and let it steam for 5-10 minutes.
6. Fluff with a fork before serving.

This process yields fluffy, flavorful quinoa suitable for many dishes. Using broth instead of water and toasting the seeds enhances the taste. Avoid overcooking or stirring too often to prevent mushiness.