Perfectly Pan-Seared Chilean Sea Bass

Master the Art of Pan-Seared Chilean Sea Bass: A Buttery, Flaky Delight in Under 25 Minutes

Prepare to create the most incredible pan-seared Chilean sea bass you’ve ever tasted. This recipe delivers a truly buttery, exquisitely flaky, and incredibly tender fish that will impress without demanding hours in the kitchen. In less than 25 minutes, you can have a restaurant-quality meal on your table, perfect for busy weeknights or special occasions. Say goodbye to dry, bland fish and hello to a golden-crusted, melt-in-your-mouth experience that will become your new go-to.

Fork breaking apart a Pan Seared Chilean Sea Bass filet

Why This Pan-Seared Chilean Sea Bass Recipe is Unbeatable


If you’ve never experienced the exquisite taste of pan-seared Chilean sea bass, prepare for a culinary revelation. Also known as Patagonian toothfish, this remarkable fish boasts a firm, yet incredibly flaky flesh with a rich, buttery, melt-in-your-mouth texture. When perfectly pan-seared, it develops a stunning golden-brown crust that seals in all the delicate juices, creating a truly unforgettable dining experience.

What sets Chilean sea bass apart is its mild flavor and thick, succulent fillets. Unlike some other fish varieties, it has no strong “fishy” taste, making it a favorite even among those who are usually hesitant about seafood. This recipe highlights the fish’s natural richness while ensuring it remains wonderfully tender on the inside. The quick cooking time, under 25 minutes, makes it an ideal choice for a luxurious yet effortless dinner. For an extra touch of gourmet elegance, consider topping it with a bright lemon-butter Beurre Blanc sauce, which you can find in our baked Chilean sea bass recipe.

Overhead photo of a Pan Seared Chilean Sea Bass filet on a plate with a fork and lemons on the side

Understanding Chilean Sea Bass: A Gourmet Choice


Chilean sea bass, scientifically known as Patagonian toothfish, is renowned for its rich, buttery flavor and incredibly tender, flaky white flesh. Its high oil content contributes to its moist texture and robust flavor, making it a highly sought-after fish for gourmet meals. Despite its name, Chilean sea bass is not a true bass but rather a deep-water fish found in the cold waters of the Southern Hemisphere. Its dense texture holds up beautifully to various cooking methods, especially pan-searing, which creates a delicious, crispy exterior while keeping the interior succulent.

Sustainability Note

Given the history of overfishing for Patagonian toothfish, it’s important to make sustainable choices when purchasing. Look for Chilean sea bass that has been certified by organizations like the Marine Stewardship Council (MSC) or rated as a “Best Choice” or “Good Alternative” by the Monterey Bay Aquarium Seafood Watch program. These certifications help ensure that your delicious meal is also an environmentally responsible one.

Ingredients You’ll Need for Pan-Seared Chilean Sea Bass


Crafting this elegant dish requires just a handful of simple, high-quality ingredients. You’ll find all specific measurements, quantities, and detailed instructions in the printable recipe card located at the end of this post.

Ingredients for Pan Seared Chilean Sea Bass

Ingredient Info and Substitution Suggestions


FISH – As mentioned, Chilean sea bass is also known as Patagonian toothfish. When selecting your fish, aim for fillets that are thick and firm. If using frozen fish, ensure it is completely thawed before you begin. A crucial step for achieving that perfect golden crust is to gently squeeze out any excess liquid from the fish using paper towels. Moisture on the surface of the fish will cause it to steam in the pan instead of browning, preventing that desirable crispy texture.

BUTTER & OLIVE OIL – We use a combination of softened butter brushed directly onto the fish and olive oil in the pan. The butter adds incredible richness and helps achieve a beautiful golden color. You can use either salted or unsalted butter; if using salted, simply reduce the amount of garlic salt in your seasoning blend. Olive oil is chosen for its higher smoke point, which is ideal for medium-high heat searing, ensuring the fish cooks without burning. For an even more luxurious flavor, you can substitute a high-quality clarified butter (ghee) for the olive oil in the pan.

SEASONING – Generous seasoning is key to enhancing the natural flavor of the sea bass. We recommend a simple yet effective blend of garlic salt, black pepper, and Old Bay seasoning. Old Bay provides a classic seafood flavor with a hint of spice and herbs that complements the fish beautifully. Feel free to adjust these to your liking or experiment with other seasonings. Some excellent alternatives include smoked paprika, a pinch of cayenne pepper for heat, a squeeze of fresh lemon juice, or fresh herbs like finely chopped dill or parsley for a brighter finish.

Essential Equipment for Perfect Pan-Seared Sea Bass


Having the right tools can make all the difference in achieving a perfectly seared fish:

  • Heavy-Bottomed Skillet: A good quality heavy-bottomed skillet, such as cast iron or stainless steel, is essential. It retains heat evenly and consistently, which is crucial for developing a beautiful crust.
  • Paper Towels: Absolutely vital for thoroughly drying the fish, preventing steaming, and promoting a crisp sear.
  • Basting Brush: Useful for evenly coating the fish with butter.
  • Fish Spatula: While not strictly essential, a thin, flexible fish spatula is incredibly helpful for gently flipping delicate fish fillets without breaking them.
  • Instant-Read Thermometer: The most reliable way to ensure your fish is cooked to perfection without overcooking.

How to Make Pan-Seared Chilean Sea Bass: Step-by-Step Perfection


These step by step photos and instructions are here to help you visualize how to make this recipe. You can Jump to Recipe to get the printable version of this recipe, complete with measurements and instructions at the bottom.

  1. Prepare the Fish: Begin by cutting your Chilean sea bass into 3 equally sized fillets. This ensures even cooking. The most crucial step for a crispy sear is to thoroughly pat and gently squeeze the fish dry with paper towels. Remove as much surface moisture as possible. Next, brush all sides of each fillet generously with softened butter. This adds flavor and aids in browning.
    hand patting chilean sea bass dry with paper towels
    chilean sea bass brushed with butter on a cutting board
  2. Season the Fish: Season each fillet generously and evenly with garlic salt, black pepper, and Old Bay seasoning, or your preferred spice blend. Don’t be shy with the seasoning – it adds a tremendous amount of flavor.
    seasoned chilean sea bass filets on a cutting board
  3. Heat the Skillet: Heat 2 Tablespoons of olive oil in a large heavy-bottomed skillet over medium-high heat. Wait until the oil is shimmering and just begins to smoke lightly before adding the fish. This indicates it’s hot enough for a good sear.
  4. First Sear (Covered): Carefully place the seasoned fish fillets into the hot oil, skin side up. Covering the skillet helps to trap heat, allowing the fish to cook through gently while the bottom develops a crust. Cook for 7 minutes.
    chilean sea bass filets cooking in a skillet skin side up
    lid on skillet over chilean sea bass
  5. Second Sear (Uncovered): Remove the lid and carefully flip the fish over to the other side. Continue to cook, uncovered, for an additional 7-9 minutes. This allows the second side to develop a beautiful crust and ensures the fish is cooked through to the perfect internal temperature.
    pan seared Chilean sea bass cooking in a skillet
  6. Rest and Serve: Once cooked, turn off the heat but leave the lid on the skillet. Allow the fish to rest for 1-2 minutes. This crucial resting period allows the fillets to relax and reabsorb their moisture, ensuring maximum juiciness and tenderness.

Frequently Asked Questions & Expert Tips for Pan-Seared Chilean Sea Bass


What temperature should you cook Chilean sea bass to?

For the perfect doneness, cook Chilean sea bass to an internal temperature of 140°F (60°C). Use an instant-read thermometer inserted into the thickest portion of the fillet. Remember to allow the fish to rest for 1-2 minutes after cooking, as specified in the recipe. This resting period helps the muscle fibers relax and redistribute moisture, resulting in a more tender and juicy fillet.

How do you store leftovers?

Like most fish, Chilean sea bass is best enjoyed immediately after cooking. However, if you have any leftovers, you can store them in an airtight container in the refrigerator for 2-3 days. While it won’t be quite as good as fresh, it will still be delicious!

How do you reheat pan-seared Chilean sea bass?

Reheating fish can be tricky, as it tends to overcook easily and become dry. For best results, reheat pan-seared Chilean sea bass in a 275°F (135°C) oven. Place the fish in a baking dish, add a small splash of water or broth to create some steam, and cover it tightly with aluminum foil. Heat for approximately 10 minutes, or until it’s warmed through. This gentle method helps retain moisture.

Can you use frozen Chilean sea bass?

Absolutely! Frozen Chilean sea bass works wonderfully, but it’s crucial to thaw it completely before you begin this recipe. Once thawed, ensure you gently squeeze out any excess liquid with a paper towel. Too much moisture on the surface will prevent the fish from searing properly and instead cause it to steam in the pan, meaning you’ll miss out on that beautiful brown crust we’re aiming for.

Can I make it in the oven or on the grill?

Yes, you certainly can! While pan-searing offers a unique crust, Chilean sea bass is versatile. For oven preparation, head over to our baked Chilean sea bass recipe. We also have a dedicated post for grilled Chilean sea bass if you prefer that method.

Tips for a Perfect Pan Sear Every Time:

  • Don’t Overcrowd the Pan: Cook in batches if necessary. Overcrowding lowers the pan’s temperature and prevents proper searing, leading to steaming instead of browning.
  • Thoroughly Pat Dry: We cannot stress this enough. A dry surface is the secret to a crispy, golden crust.
  • Ensure Proper Pan Heat: Wait until the olive oil is shimmering and shows slight wisps of smoke before adding the fish. A hot pan is essential for an immediate sear.
  • Don’t Move the Fish Too Early: Once the fish hits the pan, resist the urge to move it. Let it cook undisturbed for the recommended time to allow a crust to form naturally. It will release easily when it’s ready to flip.
  • Rest the Fish: Just like with steak, resting fish allows the juices to redistribute, ensuring a tender and moist result.
Piece of Pan Seared Chilean Sea Bass on a fork held above a plate of Pan Seared Chilean Sea Bass

Serving Suggestions for Pan-Seared Chilean Sea Bass


Pan-seared Chilean sea bass is a versatile dish that pairs beautifully with a variety of sides. For a truly satisfying meal, serve it alongside creamy mashed potatoes or a fluffy rice pilaf, which can absorb the delicious buttery pan juices. Complement the richness of the fish with vibrant, fresh vegetables such as tender steamed asparagus, roasted broccoli florets, glazed carrots, or crispy roasted Brussels sprouts. A simple squeeze of fresh lemon juice over the top before serving adds a bright, zesty contrast that elevates the flavors. You could also drizzle with a light herb-infused olive oil or a delicate Beurre Blanc sauce for an extra touch of sophistication.

More Delicious Seafood Recipes to Explore


If you loved this Chilean sea bass recipe, you might enjoy exploring other fantastic seafood dishes from our collection:

  • Smoked Trout: A flavorful and tender dish perfect for a special occasion.
  • Baked Orange Roughy: Another delicate white fish, baked to perfection.
  • Fried Whiting Fish: A classic and comforting crispy fish recipe.
  • Baked Chilean Sea Bass: For those who prefer a hands-off oven method for this exquisite fish.
  • Grilled Chilean Sea Bass: Perfect for summer grilling, offering a smoky flavor.

I love to bake and cook and share my kitchen experience with all of you! Remembering to come back each day can be tough, that’s why I offer a convenient newsletter every time a new recipe posts. Simply subscribe and start receiving your free daily recipes!

Close up photo of Pan Seared Chilean Sea Bass on a plate

Pan Seared Chilean Sea Bass

A truly simple yet sophisticated pan-seared Chilean sea bass recipe, yielding buttery, flaky fillets with a perfect golden crust. This delicate fish comes together in a snap, making it ideal for an elegant weeknight dinner or a special occasion.

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IMPORTANT – There are often Frequently Asked Questions within the blog post that you may find helpful. Simply scroll back up to read them!

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Course: Dinner
Cuisine: American
Servings: 3 servings
25 minutes
Calories: 390
Author: Amanda Davis

Ingredients

  • 1 pound Chilean sea bass fillets
  • 2 Tablespoons butter well softened (salted or unsalted)
  • garlic salt to taste
  • black pepper to taste
  • Old Bay seasoning to taste
  • 2 Tablespoons olive oil (or clarified butter/ghee)

Things You’ll Need

  • Basting brush
  • Large heavy bottomed skillet
  • Instant-read thermometer

Before You Begin

  • You can use salted or unsalted butter. If using salted butter, you might want to slightly reduce the amount of garlic salt to avoid over-seasoning.
  • The most crucial step for a beautiful sear is to gently squeeze out any excess liquid from the fish using paper towels, especially if the fish was previously frozen. Too much moisture will cause the fish to steam rather than develop a golden crust.
  • For optimal doneness and juiciness, cook the Chilean sea bass to an internal temperature of 140°F (60°C). Use an instant-read thermometer inserted into the thickest portion of the fillet for accuracy.
  • Optionally, enhance this delicious fish with a lemon-butter Beurre Blanc sauce. You can find the recipe and instructions in our baked Chilean sea bass post.

Instructions

  • Cut your Chilean sea bass into 3 equal fillets. Thoroughly pat and gently squeeze them dry with paper towels to remove excess moisture. Brush all sides of each fillet generously with softened butter.
  • Season the fillets to taste with garlic salt, black pepper, and Old Bay seasoning, ensuring an even coating on all sides.
  • Heat 2 tablespoons of olive oil in a heavy-bottomed skillet over medium-high heat until it is shimmering and just starting to show light wisps of smoke.
  • Carefully place the fish fillets into the hot oil, skin side up. Cover the skillet with a lid and cook for 7 minutes.
  • Remove the lid, then gently turn the fish over. Continue to cook, uncovered, for an additional 7-9 minutes, or until the internal temperature reaches 140°F (60°C).
  • Turn off the heat, cover the skillet again, and let the fish rest for 1-2 minutes before serving. This allows the juices to redistribute for maximum tenderness.

Expert Tips for Perfect Fish & FAQs

  • For the best flavor and texture, Chilean sea bass is best enjoyed immediately after cooking. If you have leftovers, store them in an airtight container in the refrigerator for up to 2-3 days.
  • To reheat leftovers without overcooking, place the fish in a baking dish with a splash of water. Cover with aluminum foil and warm in a 275°F oven for about 10 minutes, or until heated through. This gentle method helps retain moisture.
  • Always pat the fish very dry with paper towels before seasoning and cooking. Any residual moisture will steam the fish instead of allowing it to develop a crispy, golden crust.
  • Ensure your skillet is properly heated before adding the fish. The oil should be shimmering, indicating it’s hot enough for a good sear.
  • Avoid overcrowding the pan. If cooking more than a pound of fish, work in batches to maintain the pan’s temperature and ensure an even sear.
  • Resist the urge to move the fish too frequently. Let it cook undisturbed on each side to form a beautiful crust.

Nutrition

Serving: 1serving (1 fillet) | Calories: 390cal | Carbohydrates: 0.01g | Protein: 17g | Fat: 36g | Saturated Fat: 10g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 9g | Trans Fat: 0.3g | Cholesterol: 87mg | Sodium: 134mg | Potassium: 2mg | Sugar: 0.01g | Vitamin A: 536IU | Calcium: 2mg | Iron: 0.1mg
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The recipes on this blog are tested with a conventional gas oven and gas stovetop. It’s important to note that some ovens, especially as they age, can cook and bake inconsistently. Using an inexpensive oven thermometer can assure you that your oven is truly heating to the proper temperature. If you use a toaster oven or countertop oven, please keep in mind that they may not distribute heat the same as a conventional full sized oven and you may need to adjust your cooking/baking times. In the case of recipes made with a pressure cooker, air fryer, slow cooker, or other appliance, a link to the appliances we use is listed within each respective recipe. For baking recipes where measurements are given by weight, please note that results may not be the same if cups are used instead, and we can’t guarantee success with that method.