1. In food processor, combine chickpeas, onion, parsley, sea salt, red pepper flakes, garlic, and cumin. Pulse until blended but not pureed. (The mixture shouldn’t be smooth like hummus; it should have texture.)
2. Sprinkle in baking powder and 4 tablespoons flour and pulse, adding more flour as necessary. (Add enough flour so that dough is no longer sticky and can be formed into burger-size or small balls.) Place chickpea mixture in medium bowl, cover and refrigerate for several hours.
3. Form chickpea mixture into patties. In deep pot, bring 3 inches grapeseed oil to 375F. Cook a few minutes on each side or until golden brown. Drain on paper towels.