This version uses a baking mix.

Oil for frying
1 lb. filets or lg. shrimp
1 c. plus 3-4 tbsp. biscuit mix
1/2 tsp. salt
1 egg
1/2 c. beer

Heat oil 1 1/2 inches deep to 350 degrees. Lightly coat fish with the 3-4 tablespoons of biscuit mix. Mix together remaining mix with salt, egg and beer until smooth. Dip fish in batter, letting excess drip off. Fry until golden brown, about 2 minutes on each side. Drain.