This Portuguese fantasy is usually made with red mullet, but we have substituted more readily available salmon. Setubal is known for their bitter oranges. The original sauce was a wine-and-orange-flavored butter and the fish was covered with orange slices and baked. We like to rub the fish with orange zest, salt, and sugar and cure it for a few hours before grilling it. We have kept the original orange slices and added a little mint for garnish, although you could use cilantro for the Portu