Rinse the quinoa thoroughly under cold water using a fine mesh strainer. This step is essential for removing its natural bitterness (saponins). Then, in a small pot, combine rinsed quinoa with 2 cups water. Bring to a boil. Reduce heat to low, cover, and simmer for 15 minutes or until the water is absorbed. Now, remove from heat and let sit for 5 minutes, covered. Then fluff with a fork. And, for best crisping, spread cooked quinoa on a tray or plate and let cool completely. You can even refrigerate it to dry it out a bit more.
Preheat your oven to 350°F (177°C). Now, in a large bowl, toss the cooled quinoa with your choice of seasonings and any add-ins like oil or cheese. Don’t forget to spread the seasoned quinoa onto a parchment-lined baking sheet, pressing it into a thin, even layer. The thinner the layer, the crispier the results.
Bake for 25–35 minutes, stirring or flipping halfway through to ensure even crisping. Watch closely after 20 minutes — the quinoa should turn golden brown and feel dry to the touch. And, for ultra-crispy results, you can broil for the last 1–2 minutes. Just keep a close eye to avoid burning. Last, but not least important, remove from the oven and let cool. It will continue to crisp up as it sits.