Crispy Seared Sea Bass with Irish Moss Butter Recipe

There is a profound simplicity to cooking fresh seafood that allows the natural flavors to shine, yet the right accompaniments can elevate a humble fillet into a gastronomic masterpiece. This recipe for Seared Sea Bass with Irish Moss Butter captures the essence of coastal dining, bringing together the delicate, flaky texture of the fish with the deep, oceanic umami of seaweed-infused butter. Cooking this on an Arteflame grill adds a distinct advantage; the flat-top plancha provides the consistent, high heat necessary to shatter-crisp the skin while keeping the flesh moist and succulent. Unlike pan-searing, which can sometimes steam the fish, the open-air searing locks in juices instantly.

The star of this dish is undoubtedly the Irish Moss butter. Irish Moss, a type of red algae, offers a subtle brininess and a thickening quality that gives the butter a luxurious mouthfeel. When melted over the hot sea bass, it creates a sauce that tastes like the very best breath of ocean air. Whether you are hosting a summer dinner party or looking to expand your seafood repertoire, this dish promises a sophisticated flavor profile that is surprisingly easy to achieve.

Ingredients

For the Sea Bass

• 4 fresh Sea Bass fillets (approx. 6 oz each), skin-on
• 2 tbsp Grape seed oil or Olive oil (for coating)
• 1 tsp Coarse Sea Salt
• 1/2 tsp Freshly cracked Black Pepper

For the Irish Moss Butter

• 1/2 cup (1 stick) Unsalted Butter, softened to room temperature
• 2 tbsp Dried Irish Moss (Carrageen), rehydrated in water for 15 minutes, drained, and finely minced
• 1 clove Garlic, finely minced or pressed
• 1 tsp Lemon zest, freshly grated
• 1/2 tsp Sea Salt (adjust to taste)
• 1/4 tsp White pepper

Instructions

Step 1: Prepare the Irish Moss Butter

1. In a small mixing bowl, combine the softened butter with the minced Irish Moss, garlic, lemon zest, salt, and white pepper.
2. Mash the ingredients together with a fork until they are thoroughly incorporated and the seaweed is evenly distributed.
3. Transfer the butter onto a sheet of plastic wrap or parchment paper. Roll it into a log shape, twist the ends to seal, and refrigerate for at least 30 minutes to firm up. This allows the flavors to meld together.

Step 2: Fire Up the Grill

1. Build a medium-sized fire in the center of your Arteflame grill. You want to aim for a temperature range of 400°F to 450°F on the flat cooktop surface.
2. Allow the cooktop to heat up evenly. Use a scraper to ensure the surface is clean, then apply a very thin layer of vegetable oil to season the steel and prevent sticking.

Step 3: Prep the Sea Bass

1. While the grill heats, prepare the fish. The most crucial step is to pat the fillets completely dry with paper towels. Moisture is the enemy of crispy skin.
2. Score the skin lightly with a sharp knife (2-3 shallow slashes) to prevent the fish from curling up when it hits the heat.
3. Rub the fish with oil and season both sides generously with sea salt and black pepper.

Step 4: Sear the Fish

1. Place the sea bass fillets onto the hot plancha surface, skin-side down. Press down gently with a spatula for 10 seconds to ensure full contact with the metal.
2. Let the fish cook undisturbed for about 3-4 minutes. Do not try to move it early; the fish will naturally release from the cooktop when the skin is perfectly crisp.
3. Watch the flesh turn opaque from the bottom up. When the fish is about 70% cooked through, flip the fillets carefully.

Step 5: Baste and Finish

1. Once flipped, place a slice of the cold Irish Moss Butter on top of each fillet.
2. Allow the fish to cook on the flesh side for another 1-2 minutes while the butter melts, basting the fish in savory seaweed goodness.
3. Remove from the grill immediately once the fish is opaque and flakes easily with a fork.

Tips

Achieving the perfect sear requires patience and preparation. One of the most common mistakes is putting wet fish on the grill, which results in steaming rather than searing. Always use paper towels to remove excess moisture from the skin before seasoning. Additionally, temperature management on the Arteflame is key. If the fire is too intense, move the fish further toward the outer edge of the cooktop where the heat is gentler. This ensures the skin crisps without burning before the flesh is cooked through.

• Score the Skin: Since sea bass skin shrinks faster than the meat under heat, scoring prevents the fillet from bowing or curling.
• Cold Butter: Keep your compound butter cold until the very last moment. This ensures it melts slowly over the hot fish, creating a creamy emulsion rather than separating instantly into oil.
• Don't Overcook: Sea bass is lean; pull it off the grill the moment the center looks just slightly translucent, as carryover heat will finish the cooking process.

Variations

While this recipe highlights the unique properties of Irish Moss, the method is incredibly versatile. You can adapt the compound butter to suit different seasonal ingredients or substitute the fish depending on what is freshest at your local market. The beauty of the Arteflame is that it handles delicate seafood and robust meats with equal proficiency, allowing you to experiment with textures and flavors.

• Citrus Nori Butter: If you cannot find Irish Moss, substitute it with crumbled Nori sheets and add a splash of yuzu juice for a Japanese-inspired twist.
• Spicy Sea Bass: Add a pinch of red chili flakes or cayenne pepper to the butter mixture for a subtle heat that cuts through the richness.
• Herb Garden Style: Replace the seaweed entirely with fresh dill, chives, and tarragon for a more traditional French herb butter.
• Different Catch: This method works exceptionally well with other skin-on fish like Red Snapper, Branzino, or even Salmon.
• Garlic Confit: Instead of raw minced garlic, use roasted garlic cloves in the butter for a sweeter, mellower flavor profile.

Best Pairings

To balance the richness of the Irish Moss butter and the delicate texture of the sea bass, you need sides that offer acidity or crunch. A crisp, high-acid white wine is non-negotiable for elevating this dish to a restaurant-quality experience. On the plate, think about colors and textures that complement the golden-brown crust of the fish.

• Wine: A chilled Sauvignon Blanc, Albariño, or a mineral-forward Chablis pairs perfectly with the salty, oceanic notes of the dish.
• Grilled Vegetables: Utilize the rest of your Arteflame surface to grill asparagus spears or broccolini with lemon zest.
• Starch: Roasted baby potatoes with rosemary or a light quinoa salad with cucumber and fresh herbs.
• Salad: A simple arugula salad with a lemon vinaigrette helps cleanse the palate between bites of the buttery fish.

Conclusion

Seared Sea Bass with Irish Moss Butter is more than just a recipe; it is a celebration of textures and elemental flavors. The crunch of the skin, the tender flakiness of the meat, and the umami-rich coating of the seaweed butter create a harmony that is hard to replicate with other ingredients. By cooking this on the Arteflame, you not only achieve superior texture but also turn the cooking process into an interactive culinary event.

Whether you are a seasoned pitmaster or a home cook looking to impress, this dish proves that gourmet food doesn't have to be complicated. With just a few high-quality ingredients and the right heat control, you can bring the taste of the wild Atlantic right to your backyard table. Enjoy the process, savor the aromas, and dig in while the skin is still crackling.