Whisk together eggs and water in shallow dish. Combine cornmeal and pepper in another shallow dish.

 

For each serving: dip one cod fillet in egg mixture and then in cornmeal mixture to coat completely. Melt 2 tsp butter in skillet over medium heat; add fillet. Cook for approximately 3 minutes until cornmeal is golden and fish is just cooked through, turning once.

 

Place on serving plate with 2-1/2 Tbsp Tarter Sauce.