01 - Pat fillets dry with paper towels. Season both sides evenly with salt and black pepper.
02 - Warm olive oil in a large nonstick or stainless-steel skillet over medium-high heat.
03 - Place fillets skin-side down in the hot oil. Press gently with a spatula and cook for 3 to 4 minutes until skin is crisp and golden.
04 - Flip fillets and cook an additional 2 to 3 minutes until flesh is opaque and cooked through. Remove and keep warm tented with foil.
05 - Reduce heat to medium. Add butter to the same skillet, melting it fully before adding garlic. Sauté garlic for 30 seconds until fragrant.
06 - Add capers and stir for 1 minute. Pour in white wine or fish stock, scraping up browned bits from the skillet.
07 - Stir in lemon juice and zest. Allow sauce to simmer gently for 2 to 3 minutes, reducing slightly.
08 - Remove from heat, stir in parsley, and adjust seasoning with salt and pepper as preferred.
09 - Ladle sauce over sea bass fillets and serve immediately with complementary sides.