Authentic Swedish Grilled Haddock Recipe with Mustard Crust

Introduction

There is something undeniably comforting about Scandinavian cuisine, where simple, high-quality ingredients are elevated through bold, rustic flavors. This Swedish Grilled Haddock recipe is the perfect example of that philosophy, marrying the mild, flaky texture of fresh white fish with a sharp, savory crust. The secret lies in the combination of tangy Dijon mustard, earthy whole grains, and fresh dill—a trinity of flavors that defines much of Swedish coastal cooking. When prepared on an Arteflame grill, this dish transcends the ordinary; the searing heat of the plancha cooktop locks in moisture while creating a beautiful golden edge that you simply cannot replicate in a standard oven.

Grilling delicate white fish like haddock can sometimes be intimidating, but the Arteflame’s solid steel cooktop makes it incredibly easy. You don't have to worry about fillets falling through the grates. Instead, you get a restaurant-quality sear and a crust that warms through perfectly. Whether you are hosting a summer dinner party or looking for a healthy, flavor-packed weeknight meal, this mustard-crusted haddock brings a touch of Nordic elegance to your backyard barbecue. It is light, zesty, and undeniably delicious.

Ingredients

The Fish

• 4 fresh Haddock fillets (about 6 oz each), skin-on or skinless
• 2 tbsp Olive oil (for coating the fish and grill surface)
• Sea salt, to taste
• Freshly ground black pepper, to taste
• Lemon wedges (for serving)

The Swedish Mustard Crust

• 4 tbsp Unsalted butter, melted
• 1/2 cup Panko breadcrumbs (for extra crunch)
• 1 tbsp Dijon mustard (smooth)
• 1 tbsp Whole grain mustard (for texture)
• 3 tbsp Fresh dill, finely chopped
• 1 tbsp Fresh parsley, finely chopped

Instructions

Step 1: Fire Up the Arteflame

1. Begin by lighting your Arteflame grill. Build a medium-sized fire in the center to allow the steel cooktop to heat up evenly.
2. You are aiming for a medium-high heat zone. Test the surface by sprinkling a few drops of water on the flat steel; if they sizzle and evaporate immediately, you are ready to cook.
3. Scrape the cooktop clean and apply a thin layer of olive oil to season the surface where you will place the fish.

Step 2: Prepare the Mustard Crust Mixture

1. In a small mixing bowl, combine the melted butter, Dijon mustard, and whole grain mustard. Whisk until smooth.
2. Stir in the Panko breadcrumbs, chopped dill, and parsley.
3. Mix until the breadcrumbs have absorbed the butter and mustard, creating a crumbly, wet sand consistency. Set this aside.

Step 3: Season the Haddock

1. Pat the haddock fillets dry with paper towels. Removing excess moisture is crucial for getting a good sear.
2. Brush the fillets lightly with olive oil on both sides.
3. Season generously with sea salt and freshly ground black pepper.

Step 4: Grill the Fish

1. Place the haddock fillets directly onto the flat steel cooktop. If you have skin-on fillets, place them skin-side down first.
2. Let the fish sear undisturbed for about 2–3 minutes. You will see the edges turning opaque and white.
3. Carefully flip the fillets over. Immediately spoon a generous amount of the mustard crust mixture onto the top of the seared side of each fillet.

Step 5: Finish and Serve

1. Allow the fish to cook for another 3–4 minutes on the second side. The heat rising through the fish will warm the crust and melt the binding butter.
2. If you want the crust to be extra melty, you can briefly cover the fillets with a basting dome or a metal bowl for the last minute of cooking.
3. Once the fish flakes easily with a fork and is opaque throughout, remove from the grill. Serve immediately with fresh lemon wedges.

Tips

Cooking fish on a flat-top grill requires a bit of patience and heat management. The most important tip for this recipe is to ensure your grill is hot enough before the fish hits the steel. If the steel is lukewarm, the fish may stick; a hot surface creates an instant non-stick barrier. However, avoid the direct center where the fire is hottest, as this might burn the delicate haddock before the inside is cooked. The middle zone of the Arteflame cooktop is usually the sweet spot for white fish.

Regarding the crust, if you find that your breadcrumb mixture is too dry, do not hesitate to add a little more melted butter. The fat is essential for conducting heat into the crumbs and frying them gently while they sit on top of the fish. Additionally, keep your metal spatula handy—a thin, flexible fish spatula is the best tool for flipping the fillets without breaking the tender meat.

Variations

While Haddock is traditional for this Swedish dish, the recipe is incredibly versatile and works well with other sustainable white fish. If you cannot find fresh haddock, cod is an excellent substitute, offering a similar flake and mild flavor profile. For a richer taste, you could even try this topping on salmon, where the acidity of the mustard cuts through the oiliness of the fish perfectly. Here are a few ways to mix it up:

• Gluten-Free: Swap the Panko breadcrumbs for crushed gluten-free crackers or almond flour for a keto-friendly version.
• Spicy Kick: Add a pinch of cayenne pepper or red chili flakes to the mustard mixture for some heat.
• Herbal Twist: Replace dill with tarragon or chives for a different aromatic profile.
• Citrus Boost: Zest a whole lemon into the breadcrumb mixture before applying it to the fish.
• Cheese Lover: Mix in a tablespoon of grated Parmesan cheese into the crust for a savory umami punch.

Best pairings

To keep this meal authentically Swedish, sides should be simple yet hearty. The classic pairing for mustard-crusted fish is boiled new potatoes tossed in butter and fresh dill (known as dillpotatis). The creaminess of the potatoes balances the crunch of the crust beautifully. Alternatively, a crisp cucumber salad with a vinegar and sugar dressing (pressgurka) provides a refreshing acidity that cleanses the palate between bites of the rich, buttery fish.

• Vegetables: Grilled asparagus or charred broccolini prepared right alongside the fish on the Arteflame.
• Starch: Creamy mashed potatoes or a light quinoa salad with lemon vinaigrette.
• Drink: A crisp, dry white wine like a Sauvignon Blanc or a light Pinot Grigio pairs perfectly. For beer drinkers, a light pilsner or lager complements the mustard without overpowering the haddock.

Conclusion

This Swedish Grilled Haddock recipe is more than just a meal; it is a celebration of texture and fresh flavors. The contrast between the tender, flaky fish and the crispy, tangy mustard crust creates a bite that is sophisticated enough for guests but simple enough for a Tuesday night dinner. Using the Arteflame grill adds that distinct outdoor cooking experience, searing the fish to perfection while keeping the process effortless.

We hope this recipe inspires you to explore more Scandinavian flavors on your grill. The combination of mustard, dill, and seafood is a timeless classic for a reason. Gather your ingredients, fire up the grill, and enjoy a taste of the Swedish coast right in your own backyard. Bon appétit, or as the Swedes say, Smaklig måltid!