In order to figure out how to make the best possible McDonald's Filet-O ... That said, SeaPak does produce Beer Battered Cod that may diverge somewhat from pollock in taste, but it still checks ...
I used snapper, but any firm white fish such as terakihi, gurnard, or cod would work well ... The result is a lightly coated and crisp batter. Place beer and water in a large mixing bowl.