Pour the flour onto a shallow plate. Beat the egg in a bowl. Combine the potato flakes, salt, garlic powder, onion, powder and black pepper in another bowl.
Pat dry the cod filets. Dredge them in the flour, then the egg, then the potato mixture. Place on a wire rack to rest for 5 minutes.
Heat the cooking oil in a frying pan over medium high heat until shimmering. Place the cod filets in the pan, spaced apart so they aren’t touching. Cook for 3 minutes per side, until golden. The internal temperature of the fish should be 145 degrees F when done.
The information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for a professional nutritionist’s advice.