Wash and rinse the quinoa several times in cold water. This removes the bitter outer layer of the seed.
Add washed quinoa, water and sea salt flakes to a heavy-bottomed saucepan. Bring to a boil on medium heat. Reduce heat to low, cover and and 15-20 minutes until water disappears, the quinoa is tender and you can see the little curlicues.
Remove from heat. Cool and store in an air-tight container in the fridge for up to a week or in the freezer for up to a month.