1. Mix baking soda, salt, pepper and flour.
2. Add melted butter.
3. Add egg and lemon juice.
4. Add soda. (add more if batter seems too thick.) Batter will be lumpy, but lumps will cook out, so don't over mix.
5. Dip fish or vegetables into dry flour first before dipping into batter. This will help batter stick.
6. Fry veggies first in hot oil (350 degrees), then fish.
7. Drain on paper towels and keep in warm oven while frying.
8. Serve with tartar sauce.