As I gently flipped the perfectly seared Chilean sea bass, I couldn’t help but marvel at how such a simple dish could exude elegance. This Restaurant-Style Chilean Sea Bass with Garlic Butter Sauce is a showstopper, combining wholesome ingredients with an effortless cooking method that even beginner chefs can master. Not only does this seafood delight boast a melt-in-your-mouth texture, but it’s also a healthy option that satisfies your cravings without the guilt. Whether you’re hosting a dinner party or just want to treat yourself to a gourmet meal at home, this impressive dish is sure to elevate any occasion. Ready to dive into a culinary adventure that promises delight with every bite? Let’s get started!

Why is Chilean Sea Bass a Popular Choice?
Simplicity & Elegance: This dish can transform a regular dinner into a restaurant experience without overwhelming complexity.
Flaky Perfection: The Chilean sea bass is renowned for its buttery texture, making every bite a delight.
Flavor Boost: The garlic butter sauce infuses rich flavors, making it a standout option for seafood lovers.
Versatile Variations: Swap out the sea bass for other firm white fish and customize it with spices to match your mood.
Impressive Presentation: It not only tastes great but looks gorgeous on the plate, perfect for impressing your guests.
Time-Saving: Quick to prepare, this recipe allows you to spend more time enjoying moments with loved ones, rather than slaving over the stove. Try pairing it with garlicky mashed potatoes or roasted green beans for a full meal experience!
Chilean Sea Bass Ingredients
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For the Fish
• Chilean Sea Bass Fillets – Select skin-on for enhanced flavor and a moist texture. -
For the Cooking Oil
• Olive Oil – Essential for searing; swap with avocado oil for a high smoke point if desired. -
For the Garlic Butter Sauce
• Unsalted Butter – This ingredient adds a rich taste; you can substitute with ghee for a dairy-free option.
• Garlic – Fresh garlic is best for maximum aromatic impact in the butter sauce.
• Lemon Juice and Zest – These brighten the dish; lime can work well as an alternative for a twist. -
For Seasoning
• Sea Salt – Enhances every flavor; kosher salt serves as a good substitute if you have it on hand.
• Freshly Ground Black Pepper – For a little heat; consider white pepper for a different flavor profile. -
For Garnish
• Fresh Parsley – This adds a vibrant touch; feel free to use dill or chives for a refreshing twist.
Eager to prepare this delightful Chilean sea bass dish? Let’s dive into the cooking process!
Step‑by‑Step Instructions for Restaurant-Style Chilean Sea Bass with Garlic Butter Sauce
Step 1: Preheat and Prepare
Begin by preheating your oven to 400°F (200°C). While it warms, take your Chilean sea bass fillets and pat them dry with paper towels to ensure a crispy texture. Once dry, season both sides generously with sea salt and freshly ground black pepper, allowing the flavors to absorb as the oven heats.
Step 2: Sear the Fillets
In a large oven-safe skillet, heat two tablespoons of olive oil over medium-high heat. Once the oil shimmers, carefully place the seasoned Chilean sea bass fillets skin-side down. Sear each fillet for 3-4 minutes, watching for a golden brown crust to form on the skin. This step helps lock in moisture, making the fish tender and flaky.
Step 3: Add Flavor Enhancers
Gently flip the fillets over and add 2 tablespoons of unsalted butter along with 2-3 cloves of minced garlic to the skillet. As the butter melts, spoon it over the fillets repeatedly for 1-2 minutes. This step infuses the fish with a rich garlicky flavor while also creating a luxurious garlic butter sauce.
Step 4: Brighten with Citrus
Next, squeeze the juice of half a lemon and sprinkle in some lemon zest over the fish. This brightens the flavors and enhances the overall taste of the Chilean sea bass. Once combined, it’s time to transfer the skillet to the preheated oven to roast.
Step 5: Roast to Perfection
Carefully move the skillet to the oven and let the fillets roast for 8-10 minutes. Keep an eye on the fish—it’s done when it flakes easily with a fork and turns opaque throughout. The crust will remain golden while the inside stays moist and tender, ensuring a delightful bite.
Step 6: Plate and Garnish
Once cooked, remove the skillet from the oven (remember, it will be hot!). Serve the Chilean sea bass immediately, spooning the decadent garlic butter sauce over each fillet for added richness. Garnish with freshly chopped parsley for a pop of color, and admire your masterpiece!

Storage Tips for Chilean Sea Bass
Fridge: Store leftovers in an airtight container for up to 2 days. The flavors will deepen over time, making each bite even more delightful!
Freezer: If you need to freeze your cooked Chilean sea bass, wrap it tightly in plastic wrap and then foil for up to 1 month. Thaw overnight in the fridge before reheating.
Reheating: For the best results, reheat gently in a skillet over low heat, spooning a bit of garlic butter sauce over the fish to keep it moist and flavorful.
Room Temperature: Avoid leaving the cooked fish at room temperature for more than 2 hours to ensure freshness and safety.
What to Serve with Restaurant-Style Chilean Sea Bass
Elevate your dining experience by pairing this delectable seafood dish with sides that harmonize and enhance its flavors.
- Garlicky Mashed Potatoes: Creamy and buttery, these mashed potatoes provide a comforting texture that balances the flaky fish beautifully.
- Roasted Green Beans: Crisp and vibrant, they add a fresh crunch that complements the richness of the garlic butter sauce.
- Citrus Quinoa Salad: Packed with zesty flavors and textures, this salad provides a light and refreshing contrast to the dish’s richness.
- Sautéed Spinach: With its tender leaves and mild earthiness, sautéed spinach adds a nutritious and flavorful element to every bite.
- Lemon Wedge: A simple squeeze of lemon brightens the dish, enhancing the fish’s natural flavors and adding a citrusy zing.
- Chardonnay: A chilled glass of oaked Chardonnay harmonizes with the buttery notes of the sea bass, elevating the dining experience.
- Fruit Sorbet: Finish your meal with a light fruit sorbet for a sweet, refreshing dessert that cleanses the palate and delights the senses.
Make Ahead Options
Preparing the Restaurant-Style Chilean Sea Bass ahead of time is a fantastic way to save effort on busy weeknights! You can season the fillets with salt and pepper up to 24 hours in advance, wrapping them tightly in plastic wrap and refrigerating. Additionally, you can prepare the garlic butter sauce by melting the butter and mixing in minced garlic, lemon juice, and zest, storing it in an airtight container for up to 3 days. When you’re ready to cook, simply take the fillets out, let them rest at room temperature for 15 minutes, then sear and roast as directed. This approach ensures your meal remains just as delicious and helps streamline your cooking process, allowing you to enjoy a gourmet dinner with minimal fuss!
Chilean Sea Bass Variations & Substitutions
Feel free to customize this recipe and make it your own, adding your favorite flavors and ingredients!
- Firm White Fish: Swap Chilean sea bass for halibut, cod, or haddock for a delightful twist that retains similar textures.
- Dairy-Free: Use ghee instead of butter to create a dairy-free garlic butter sauce that’s equally rich and flavorful.
- Citrus Swap: Instead of lemon, try using lime juice and zest for a zesty, tropical flavor that’ll brighten the dish.
- Extra Spice: Add red pepper flakes or minced jalapeño to the garlic butter for a spicy kick that complements the fish’s richness.
- Herb Medley: Experiment with fresh herbs like dill, basil, or cilantro for a different aroma and taste that will elevate your dish.
- Nutty Flavor: Incorporate a tablespoon of toasted pine nuts or slivered almonds as a garnish for a delicious crunch and a nutty twist.
- Grain Pairing: Serve the fish over a bed of fragrant quinoa or wild rice to create a heartier meal that boosts the dish’s nutrition.
- Sauce Variation: For a creamy sauce, consider adding a splash of coconut milk to the garlic butter for a luscious and exotic flavor enhancement.
As you explore these variations, don’t hesitate to check out our Expert Tips for Perfect Chilean Sea Bass to ensure your dish shines every time! Enjoy experimenting with your culinary creations!
Expert Tips for Perfect Chilean Sea Bass
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Hot Skillet: Ensure your skillet is hot before adding the fish. A sizzling sound indicates it’s ready, helping achieve that perfect crust.
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Don’t Overcook: Keep a close eye while roasting. Fish continues to cook after removing it from the oven, leading to a delicate, flaky result if done right.
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Use a Thermometer: If unsure about cooking time, a meat thermometer makes it easy. Aim for an internal temperature of 145°F (63°C).
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Flavor Boosters: For varied flavors, try adding herbs or spices to the garlic butter sauce. Fresh dill or chili flakes can transform your Chilean sea bass!
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Resting Time: Allow the fish to rest for a couple of minutes before serving. This helps retain moisture and enhances the flavor.

Restaurant-Style Chilean Sea Bass Recipe FAQs
What should I look for when selecting Chilean sea bass?
Look for Chilean sea bass fillets that are firm and have a translucent appearance. Ideally, they should be skin-on to provide added flavor and moisture. Choose fillets with a fresh ocean scent and no dark spots or discoloration, as these can indicate spoilage.
How should I store leftover Chilean sea bass?
Store leftovers in an airtight container in the refrigerator for up to 2 days. This helps preserve the freshness and allows the flavors to deepen, making for even tastier leftover meals! Just remember to let it cool to room temperature before sealing it up.
Can I freeze cooked Chilean sea bass?
Absolutely! To freeze your cooked Chilean sea bass, wrap the fillets tightly in plastic wrap, ensuring no air pockets remain, then wrap them in aluminum foil for extra protection. They can be frozen for up to 1 month. When you’re ready to enjoy, thaw overnight in the fridge and reheat gently.
What can I do if my fish is overcooked?
If you happen to overcook your Chilean sea bass, don’t fret! You can try shredding the fish and mixing it into a creamy pasta sauce or a chowder. This helps mask any dryness and enhances the overall flavor. Serve it with a squeeze of fresh lemon juice and some herbs to freshen it up.
Is Chilean sea bass safe for pets?
While cooked Chilean sea bass can be a tasty treat for dogs (without any added seasonings), it’s essential to avoid giving it to cats or other pets, as they may have different dietary needs. Always check with your veterinarian before introducing new foods into your pet’s diet to ensure it’s suitable for them.
What are some common allergens in this recipe?
The main allergens in this recipe could include fish, dairy (from the butter), and potentially gluten if you use certain types of seasoning. Always check labels if you have allergies, and customize the recipe by using dairy alternatives like ghee or vegan butter to accommodate specific dietary needs.

Mouthwatering Chilean Sea Bass with Garlic Butter Bliss
Ingredients
Equipment
Method
- Preheat your oven to 400°F (200°C). Pat the Chilean sea bass fillets dry with paper towels, then season with sea salt and black pepper.
- In a large oven-safe skillet, heat olive oil over medium-high heat. Sear the fillets skin-side down for 3-4 minutes until golden brown.
- Gently flip the fillets, add butter and minced garlic. Spoon the melting butter over the fillets for 1-2 minutes.
- Squeeze lemon juice and add lemon zest over the fish. Transfer the skillet to the oven to roast.
- Roast for 8-10 minutes until the fish flakes easily and turns opaque.
- Remove from the oven, serve with garlic butter sauce spooned over each fillet, and garnish with parsley.

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