Preparation: Start by placing the cod fillets on a clean cutting board. Pat them dry with a paper towel to ensure a perfect sear. Season both sides with salt and freshly ground black pepper.
Coating and Searing: Lightly coat each fillet in flour, shaking off excess. In a nonstick skillet, heat 2 tablespoons of olive oil over medium heat. Once shimmering, add cod fillets and cook until golden and crispy, about 3 to 4 minutes per side.
Resting the Fillets: Transfer seared fillets to a platter and tent with foil to keep warm, allowing juices to redistribute for a tender texture.
Creating the Herb Butter Sauce: In the same skillet, sauté minced shallot until soft. Add white wine, lemon zest, and juice, simmering until reduced by half. Whisk in butter and herbs until smooth, seasoning to taste.
Assembling and Serving: Drizzle the luscious sauce over warm cod fillets. Serve immediately for an aromatic and flavorful experience.