Monkfish Recipe Grilled: Charred and Flaky With Lemon-Herb Butter

This grilled monkfish delivers flaky, tender results with a charred exterior that locks in incredible flavor. The key lies in proper preparation and precise grilling timing to achieve that perfect texture we all crave.

I’ve refined this method to ensure the fish cooks evenly while developing a smoky depth that complements its naturally sweet taste. A simple lemon-herb butter finishes each fillet, adding brightness without overpowering the monkfish’s delicate flavor.

What sets this dish apart is its simplicity—just a few ingredients and 15 minutes on the grill. The result is restaurant-quality seafood with a crisp, caramelized crust and moist, flaky interior.

Serve immediately with grilled vegetables or a light salad to complete the meal. This technique guarantees impressive results every time.

Ingredients for Monkfish Recipe Grilled

Minimal ingredients maximize the monkfish’s natural sweetness and flaky texture perfectly.

The monkfish quality is non-negotiable here. Wild-caught from a trusted fishmonger ensures firm, sweet fillets that hold up to grilling. Look for vibrant color and a mild ocean scent—avoid anything fishy-smelling or dull. Whole Foods and local seafood markets typically stock the freshest. Ask for the thickest center-cut fillets (about 1-inch) to prevent overcooking. The skin should be intact and slightly glossy.

No monkfish? Halibut or swordfish (similar thickness) are the best substitutes. For the herb butter, dried herbs work at one-third the amount, but fresh is ideal. If you’re out of lemon, lime juice and zest provide a bright alternative. Want more smoke? Add ½ tsp liquid smoke to the butter. For extra richness, swap 1 tbsp butter for olive oil in the basting mix.

Monkfish is best cooked the day of purchase, but it keeps 1-2 days in the coldest part of the fridge. Store it wrapped in paper towels inside a sealed container. The lemon-herb butter can be made 2 days ahead and refrigerated. Leftovers (if any) hold for 2 days but are best served immediately for peak texture.

Step-by-Step Instructions for Grilled Monkfish

Precise technique and timing ensure perfectly charred, flaky results every time.

Step 1: Prepare the Lemon-Herb Butter

In a small bowl, combine 6 tbsp unsalted butter (softened), 2 tbsp fresh lemon juice, 1 tsp lemon zest, 2 minced garlic cloves, ¼ cup finely chopped fresh parsley, and 1 tsp fresh thyme leaves. Mix thoroughly until all ingredients are evenly incorporated.

The butter should be soft enough to blend easily but not melted. This compound butter will baste the monkfish during grilling, infusing it with bright citrus and herbal notes. Set aside at room temperature while you prepare the fillets.

Step 2: Season and Oil the Monkfish Fillets

Pat the 1.5 lb monkfish fillets completely dry with paper towels. This step is crucial—moisture prevents proper charring. Season both sides with 1.5 tsp kosher salt, ½ tsp freshly ground black pepper, and ¼ tsp smoked paprika (if using).

Brush both sides of each fillet lightly with 1 tbsp extra-virgin olive oil. The oil creates a barrier that prevents sticking while promoting even browning. Let the seasoned fillets sit at room temperature for 10 minutes before grilling.

Step 3: Preheat and Clean the Grill

Preheat your grill to medium-high heat (about 400°F). This temperature provides the intense heat needed to develop a proper char without drying out the delicate fish. Use a grill brush to clean the grates thoroughly—any residual debris will cause the fillets to stick.

Once hot, use tongs and a folded paper towel to oil the grates with the remaining 1 tbsp extra-virgin olive oil. This creates a nonstick surface and enhances the grill marks. Close the lid for 2 minutes to let the grates heat back up before adding the fish.

Step 4: Grill and Baste to Perfection

Place the fillets skin-side down on the hot grates. Close the lid and cook for 4-5 minutes until you see deep char marks forming and the edges turn opaque. Resist the urge to move them—the fish will release naturally when ready.

Flip the fillets and immediately spoon 2 tbsp of the lemon-herb butter over each. Close the lid and cook for an additional 3-4 minutes until the fish is opaque throughout and flakes easily with a fork. The internal temperature should reach 145°F.

Step 5: Rest and Garnish for Serving

Transfer the grilled monkfish to a serving platter and top with the remaining lemon-herb butter. Let it rest for 3 minutes—this allows the juices to redistribute, ensuring moist, flaky fillets.

Garnish with additional chopped fresh parsley and a squeeze of fresh lemon juice if desired. Serve immediately while the butter is still melting over the hot fish. The result should be tender, charred fillets with a bright, herby finish.

Flavor Customization for These Flavors

Spicy Kick

Add ½ tsp cayenne pepper or 1 tsp chili flakes to your lemon-herb butter for a subtle heat that pairs wonderfully with monkfish’s sweetness. I love how the spice enhances the charred flavors from grilling.

Mediterranean Twist

Swap the thyme for 1 tsp dried oregano and add ¼ cup chopped kalamata olives to the butter. The briny olives and oregano transport this dish to the Mediterranean. 🌶️

Asian Fusion

Replace the lemon with 2 tbsp lime juice and add 1 tbsp grated ginger and 1 tbsp soy sauce to the butter. This bright, umami-rich version is incredible with jasmine rice.

Smoky Depth

Increase the smoked paprika to 1 tsp and add ½ tsp ground cumin to the seasoning mix. This creates a deeper, more complex smoke profile that stands up to the grill’s char.

Herb Variations

Try tarragon or dill instead of thyme for a different herbal note. 1 tbsp chopped chives also adds a nice oniony brightness that complements the fish beautifully.

Citrus Swap

Orange or grapefruit zest can replace lemon for a sweeter, more floral citrus note. Use 1 tbsp juice and 1 tsp zest from either fruit in the butter. I find orange works particularly well with the smoky grill flavors.

Frequently Asked Questions