2 Eggs, separated
3/4 cup Beer, at room temperature
2 Tbsp Vegetable Oil
3/4 cup Flour
1 tsp Salt
To prepare, place flour in a mixing bowl and add egg yolks, salt, oil, and beer. Stir batter until thoroughly mixed.
Cover bowl with plastic wrap and allow it to rest in the fridge for at least 2 hours or as long as 24 - the longer the better, to a point. Just before using batter, stir it well again.
In a separate bowl, beat egg whites until stiff but not dry; gently fold egg whites into batter.
Fry fish in oil at 360 F, for about 2 minutes per side.