01 - Preheat oven to 340°F and line a baking sheet with parchment paper. Spread the cooked, dried quinoa evenly on the sheet and bake for 15 minutes, stirring once halfway through, until dry and crisp. Let cool completely.
02 - Place the chopped dark chocolate in a heatproof bowl over a pot of simmering water using the double-boiler method, or microwave in 30-second bursts, stirring until completely smooth and glossy.
03 - Mix the cooled, toasted quinoa into the melted chocolate until well coated. Add sea salt and any desired add-ins such as toasted nuts or shredded coconut, folding gently to distribute evenly.
04 - Drop heaping teaspoons of the mixture onto a parchment-lined tray, shaping into small rounds with the back of a spoon. Space slightly apart to prevent sticking.
05 - Refrigerate for 30 minutes, or until fully set and crisp. The crisps should firm up completely and break cleanly when handled.
06 - Enjoy immediately or store in an airtight container at room temperature for up to 1 week. For extended freshness, refrigerate for up to 2 weeks.