Pan-Seared Arctic Char with Dill and Mustard Sauce

By AislePrompt Editorial · Published 2026-06-09 · Updated 2026-06-09

A delicate Arctic char fillet pan-seared to perfection and served with a tangy Swedish-inspired dill and mustard sauce. This Mediterranean-inspired seafood recipe, ready in about 25 minutes, pairs Arctic char fillets, Salt, Black pepper for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 4 fillets, about 6 oz each Arctic char fillets
• 1 tsp Salt
• 1/2 tsp Black pepper
• 2 tbsp Butter
• 1 tbsp Olive oil
• 3 tbsp Dijon mustard
• 2 tbsp Fresh dill, chopped
• 1 tbsp Lemon juice
• 1/4 cup Heavy cream

The pan we’d use for this → Best Nonstick Cookware for 2026: Top 5 Skillet Picks + Buying Guide

Instructions

1. Step 1: Pat dry 4 Arctic char fillets and season both sides with 1 tsp salt and 1/2 tsp black pepper.
2. Step 2: Heat 2 tbsp butter and 1 tbsp olive oil in a large non-stick skillet over medium-high heat until sizzling but not smoking.
3. Step 3: Place fillets skin-side down and cook for 4-5 minutes until skin is crisp and golden, then carefully flip and cook for another 3 minutes until just cooked through.
4. Step 4: Remove fillets to a warm plate and keep warm while preparing sauce.
5. Step 5: Lower heat to medium and add 3 tbsp Dijon mustard, 2 tbsp chopped fresh dill, 1 tbsp lemon juice, and 1/4 cup heavy cream to the skillet; stir and cook for 2 minutes until sauce thickens slightly and coats the back of a spoon.
6. Step 6: Spoon sauce over the Arctic char fillets and serve immediately.