Preheat oven to 420ºF / 220ºC.
Cut fish into 4 inch pieces if the fillets are too big. Pat them dry with paper towels.
Prepare a baking tray lined with aluminum foil and lightly greased.
Prepare 3 bowls. Put corn starch in the first one, beaten egg in the second one, and panko crumbs, garlic powder, salt and pepper in the third one.
Dip a piece of fish in the corn starch, then in the egg, then finally in the panko mixture. Transfer to lined baking tray. Repeat for the rest of the fish.
Bake for 15 minutes or until golden brown.
Serve immediately with chips and your favorite dipping sauce. Enjoy!