In a food processor, blend fava beans, herbs, onion, garlic, and spices into a slightly coarse paste.
Add baking powder and chickpea flour; process until just firm enough to hold shape.
Chill the mixture for at least 30 minutes. It helps them hold together.
Shape into small balls or patties. Use two teaspoons to form small ovals, or splurge on a falafel maker.
Fill a deep skillet with at least 1 inch of oil. Heat to 375 degrees. Carefully add the falafel without overcrowding the pan, and fry until golden brown, turning once.
Remove with a slotted spoon and let drain on a paper towel-lined plate. Serve with tahini sauce, or stuffed in a pita with tomato, cucumber, pickles and tahina sauce.
Notes
You can use frozen fava beans, just make sure they are defrosted and and towel-dry before using.