How to Make It
Combine chickpeas, egg, olive oil, onion, garlic, parsley, cumin, coriander, baking powder, zest and salt in a food processor. Pulse until mixture is well combined but not completely smooth. Scrape into a bowl and stir in bread crumbs.
Heat waffle iron. Brush grids with olive oil. Scoop dough onto iron. Close iron; cook until waffles are lightly browned, 3 to 5 minutes or as manufacturer recommends. Serve with cucumbers and yogurt, if desired.