01 - Pat cod fillets thoroughly dry with paper towels. Season both sides evenly with salt and black pepper.
02 - Lightly coat each fillet in flour, shaking off any excess to ensure a thin, even layer.
03 - In a large skillet over medium-high heat, combine olive oil and 1 tablespoon butter until melted and shimmering.
04 - Place fillets in the hot pan and cook for 2-3 minutes per side until golden brown and just cooked through. Transfer to a plate and cover loosely with foil to keep warm.
05 - Reduce heat to medium. Add remaining 3 tablespoons butter and minced garlic to the skillet. Sauté for 30 seconds until fragrant, being careful not to burn the garlic.
06 - Pour in white wine while scraping up any browned bits from the bottom of the pan. Simmer for 1 minute to reduce slightly.
07 - Add lemon juice, drained capers, and chicken broth. Simmer for 2-3 minutes until the sauce reduces and thickens slightly.
08 - Return cod fillets to the skillet, spooning the sauce generously over each piece. Heat through for 1-2 minutes. Garnish with fresh parsley and lemon slices before serving immediately.