Dry the cod fillet with kitchen towel. Cut it into small pieces and marinate with salt and pepper for 15 minutes.
Use a blender to blend 2/3 of the corn into puree.
Beat the egg in a bowl. Dip the cod into the egg to coat. Coat it with another layer of corn flour.
Heat the oil into pan. The oil should be 1.5cm height. When oil becomes hot, gently put the cod into the hot oil. Cook for 2 minutes per side or until cooked. Transfer it onto a kitchen towel to remove any excess oil.
Heat a small amount of oil in a pan, add the corn puree, corn in the pan and water. Season with salt and sugar. Cook it until boiling.
Add the remaining beaten egg. Cook for further 1/2 minute.