I have been making batter for years, my mother passed the recipe down to me, she always reasoned - fish and chip shops (40+ years ago) would not waste money on eggs or beer for their batter. I use flour (plain or self raising) a pinch of salt, pepper and (a secret ingredient given to me by a retired chip shop owner) half a teaspoon of Bicarbonate of Soda. Mix these ingredients with enough water to make a smooth batter. If possible leave to stand for a while. Coat the fish with flour and then dip in the batter. Deep fry for a lovely golden crispy batter (the crispy bits left in the pan are great). I also use this batter to make fritters. Slice some potato (not too thick) coat in the batter and deep fry. Heaven. Good luck, hope this works for you.