01 -
Preheat the oil to 350°F in a deep fryer or a medium-sized saucepan.
02 -
In a medium bowl, combine the flour, cornstarch, baking powder, salt, and cayenne pepper. Whisk in the water. The batter will get a little foamy. Continue to mix.
03 -
Pat the fish dry with a paper towel to remove excess moisture. Dip the fish in the batter to fully coat each fillet.
04 -
Deep-fry the fillets for 3 to 4 minutes until they are golden brown. If you choose to fry multiple pieces at once, you may want to separate the pieces when cooking.
05 -
When the fish has finished cooking, let it drain on a wire rack.