In a food processor combine the chickpeas, garlic, chopped cooking onion, the chopped whites of the green onions, ground cumin, lemon juice, olive oil, salt and pepper. Pulse until you have a chunky paste and there are hardly any whole chickpeas left. Add the flour and baking soda and pulse a couple more times to combine. You should have a wet and chunky paste. Scrape this into a large bowl. To this, add the cooked millet, sesame seeds, and sliced green onion tops. Fold it all together to combine.

Form falafels with your hands by grabbing about 2 tbsp of chickpea mixture at a time. Gently roll it into a football-ish shape and place it on the parchment lined pan. repeat with remaining chickpea mixture. Once you're done, slide the tray into the oven and bake falafels for about 20 minutes or until lightly browned and slightly firm to the touch. Serve falafels in a pita, big lettuce leaf, or on top of a salad with any of the accompaniments

Combine everything but the sliced onion in a small saucepan over medium heat. Bring the mixture to a boil and simmer until the sugar is dissolved, about 1 minute. While it's heating up, pack the sliced onions into a clean jar. Pour the vinegar mixture over the onions and allow it to sit at room temp, uncovered, for an hour or so. Put the lid on and refrigerate onions until ready to use. These will keep for a few weeks (but they probably won't last that long).

Shake up all of the ingredients in a tightly sealed jar. Check it for seasoning, adjust and store in the fridge until you're ready to use it.