Procedure
Preheat the oven to 400°F. Add onion, parsley, garlic, cumin, salt, coriander, and baking soda to the container of the food processor. Blend the mixture to form a puree and then transfer it to a large bowl. Combine flour to this mixture and form patties from it. Grease an ovenproof skillet with cooking spray and keep it over medium-high heat.