Ingredients
2 tablespoons butter
1 onion, very thinly sliced
Two 12-ounce cod filets
1/4 teaspoon salt
1/4 teaspoon freshly ground black pepper
1/2 teaspoon ground coriander (cilantro)
1/2 cup fresh parsley leaves
1 lemon, thinly sliced into rounds
1 orange, thinly sliced into rounds
1 lime, thinly sliced into rounds
1 tablespoon extra virgin olive oil