1 cup tortilla chips crushed finely (from 3 cups chips)
Equipment
food processor
frying pan
baking sheet
oven
Directions
Heat oven to 350 F. Finely chop enough onion to measure 3/4 cup and enough cilantro stems to measure 1 tablespoon (reserving the leaves).
Heat 1 tablespoon of the oil in an ovenproof skillet over medium heat.
Add the onion, cilantro stems, and jalapeo and cook until softened, 4 minutes. Pulse the cod, egg, salt, pepper, and the onion mixture in a food processor until combined but not pureed. Form 8 cod cakes. Coat each cake with the chips. Wipe out skillet.
Heat 1 tablespoon of the remaining oil over medium heat.
Add 4 cakes and cook until golden brown, 3 minutes on each side.
Transfer to a baking sheet. Wipe out skillet and repeat with 1 tablespoon of the remaining oil and the last 4 cakes.
Bake until cooked through, about 10 minutes. Thinly slice the remaining onion. Toss with the oranges, 1/2 cup of the cilantro leaves, and the remaining oil.
Serve with the cakes. Tip: Cilantro stems have a mild though distinct flavor. Use them when you want a slightly less pungent cilantro presence than you'd get from the leaves.