Add peanut butter, quinoa puffs, vanilla extract, honey, and salt (if using) to a large bowl and mix until well combined. Evenly distribute the mixture into a 12-cup muffin pan (silicone ones are recommended for easy removal; otherwise, use parchment liners) and press down firmly. In a small bowl, combine the dark chocolate and coconut oil, then melt in the microwave until smooth. Drizzle the melted chocolate over the top of each quinoa cup and sprinkle with flaky sea salt. Place in the fridge for about 45 minutes to set before enjoying.
