Take aluminum foil and wrap your broiler pan in it, then spray with cooking spray. Ensure the foil outlines the grooves on your broiler pan. That way your fish isn’t sitting in the liquid on the pan. You can also use a cookie sheet but you’ll want to remove excess water after boiling.
Place cod in a pot on your stove top. In a bowl mix water, Swerve, and salt, then pour over fish. fish should be fully covered in the pot.
Bring contents of pot to a boil over a medium-high heat. Boil for 3 to 5 minutes depending on the thickness of the cod fillet.
Remove fish from water, carefully keeping fillets intact and place on broiler pan. If you are using a cookie sheet make sure to remove excess water first. Brush fillets with melted butter, and season with lemon-pepper and paprika. Squeeze some lemon juice over the top.
Broil for about 7 minutes on low or until the fillets flake easily with a fork. Serve with melted garlic butter.