Most importantly get a bottle of chardonay and wrap three sheets of kitchen papaer around it. Dribble water on it until all the paper is wet and then put it in the freezer. This is a tip on how to chill a bottle of white wine really quickly .. by the time you have made your meal the wine will be perfect !
Going back to your cod .. get a fresh fillet instead of battered.
Place some foil across a baking tray.
Put your cod in the foil.
Some butter on the fish..
Some ground black pepper..
Bit of salt ..
A drizzle of lemon..
Bake for 20mins on gas mark 6..
.. tell me that's not tasty