Combine all falafel ingredients in a large bowl. Mix together well (use your hands if you like). Form into patties. Do this ahead, if preferred, and refrigerate, covered, for up to 2 hours.
Step 2 To make dressing, combine all ingredients in a small bowl.
Step 3When ready to cook patties, heat a pan or barbecue grill to a medium heat. Spray with oil. Add patties and cook until golden and cooked through – about 8 minutes each side. Serve with salad and bread rolls, or in burger buns or pita breads, with a dollop of dressing.