Pat cod dry with paper towels; sprinkle with salt and pepper. In a large nonstick skillet, heat 2 tablespoons oil over medium-high heat. Brown fillets lightly on both sides; remove from pan., In same skillet, heat remaining oil over medium heat. Add onion; cook and stir until softened, 4-5 minutes. Stir in wine; cook until onion is lightly browned, stirring occasionally, 3-4 minutes longer. Return cod to pan. Reduce heat to low; cook, covered, until fish just begins to flake easily with a fork, 2-3 minutes., Remove cod from pan. Stir cilantro and pine nuts into onion; serve with fish.