Cooking salmon on a cast iron skillet is one of the best ways to prepare this healthy, flavorful fish. The cast iron evenly distributes heat, allowing you to develop a beautiful crisp, golden brown exterior while keeping the inside tender and juicy. And it only takes about 10-15 minutes from start to finish!
In this comprehensive guide I’ll share my tips and tricks for cooking foolproof salmon fillets on cast iron including
- The benefits of cast iron for salmon
- Step-by-step instructions
- Helpful cooking tips
- Flavor additions
- Serving suggestions
- Storage instructions
Plus plenty of details to help you nail perfectly seared cast iron salmon every time. Let’s get started!
Why Cook Salmon on Cast Iron?
Cast iron skillets have some major advantages when it comes to cooking salmon fillets
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Even heating: Cast iron maintains and conducts heat very well, helping prevent cold spots that lead to uneven cooking.
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Great sear The pan gets hotter than stainless steel allowing you to develop a crispy, flavorful crust without overcooking the center.
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Holds heat: Even after adding cold food, cast iron regains temperature quickly for consistent browning.
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Oven-safe: You can start the salmon on the stovetop then transfer directly to the oven.
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Nonstick surface: Well-seasoned cast iron develops a natural nonstick coating, preventing delicate fish from sticking.
For the best results, choose a heavy, pre-seasoned cast iron skillet. And make sure to heat it properly before adding the salmon.
Step-by-Step Instructions
Follow these simple steps for searing tender, flaky salmon fillets on cast iron:
Ingredients:
- Salmon fillets, about 1-inch thick
- Olive oil or butter
- Salt and pepper
- Lemon wedges for serving (optional)
Directions:
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Pat salmon dry and brush both sides with oil. Drying prevents steaming.
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Season flesh side with salt and pepper. Go light on thicker fillets so the seasoning doesn’t burn.
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Heat cast iron skillet over medium-high heat for 2-3 minutes. When hot, add oil and let it shimmer.
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Carefully place fillets flesh-side down. Sear for 4 minutes until golden. Reduce heat if pan is smoking.
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Flip and cook skin-side down until opaque in center, about 2-5 minutes more.
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Rest salmon on plate for 5 minutes before serving with lemon wedges.
And that’s all it takes for restaurant-quality salmon ready in less than 15 minutes!
Helpful Tips and Tricks
Follow these tips to take your cast iron salmon game to the next level:
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Dry fish well before cooking for optimal browning. Wet fish steams instead of searing.
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Use medium-high heat so the pan is very hot but not smoking. Too low and salmon steams.
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Preheat 3-5 minutes so pan is evenly hot. This prevents sticking and overcooking edges.
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Don’t move fish once placed in pan. Twitching leads to torn flesh. Let it cook undisturbed.
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Reduce heat if pan smokes or salmon browns too quickly. Regulate temperature as needed.
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Check doneness before final flip. Salmon should release easily when ready to turn.
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Let rest before cutting. Carryover cooking continues off heat.
With these handy tips, you’ll be pan-searing salmon like a seasoned pro!
Flavorful Additions
One benefit of stovetop salmon is how easy it is to infuse flavor. Try these tasty additions:
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Compound butter – Top with chipotle lime or roasted garlic butter.
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Fresh herbs – Sprinkle minced parsley, dill, basil or cilantro over fillets.
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Spices and seasonings – Coat with Cajun seasoning, lemon pepper or smoked paprika before searing.
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Citrus – Sear skin-side up with lemon, lime or orange slices.
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Garlic – Sauté minced garlic in oil before adding salmon.
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Wine or broth – Deglaze pan with white wine or chicken broth after removing salmon.
With just a small extra step, you can take seared salmon from basic to gourmet.
What to Serve with Cast Iron Salmon
Here are some stellar sides to serve with crispy cast iron salmon:
- Rice pilaf or couscous
- Quinoa or lentils
- Roasted asparagus, Brussels sprouts or broccoli
- Wilted spinach or kale
- Wedge salad with creamy dressing
- Roasted fingerling potatoes
- Fresh dinner rolls or focaccia
A quick veggie side and some bread or rice rounds out the meal beautifully. Get creative with seasonal produce!
Storing and Reheating Leftovers
Here are some tips for storing and reheating leftover cast iron salmon:
- Let cool before refrigerating in a sealed container for up to 3 days.
- Add any pan juices to keep fish moist.
- Refrigerate baked fillets whole or flake salmon into chunks.
- Reheat in microwave until warmed through, 1-2 minutes.
- Use as topping for salad or fold into pasta, rice or risotto dishes.
With proper storage, leftovers will retain moisture and flavor for quick salmon meals all week long.
Key Takeaways
- Cast iron evenly cooks salmon with a crisp crust and tender interior in minutes
- Dry fish thoroughly and use medium-high heat for best sear
- Let rest before serving to allow carryover cooking to finish
- Infuse flavor with fresh herbs, spices, garlic, citrus and more
- Store leftovers with pan juices to retain moisture and flavor
Now that you’ve got the basics down, get ready to enjoy restaurant-quality salmon right from your own kitchen. Just heat up that cast iron skillet and unleash your inner salmon searing pro!
FAQ
How do you cook salmon in a cast iron skillet?
Heat oil in a large cast-iron skillet over high heat until it just starts to smoke; reduce heat to medium-high and add butter. Add fillets, skin-sides down, as soon as butter melts. Cover the skillet; cook until fish flakes easily with a fork, 7 to 9 minutes, depending on thickness.
How do you keep salmon from sticking to cast iron?
Make sure you’re using the right temperature. It shouldn’t be set somewhere in the middle. Use a lot of oil/butter to lubricate the pan. Don’t “press it into the pan”. Shake the pan so the filet slides around. Do this periodically throughout the cooking, but especially for the first few seconds.
Do you pan-sear salmon skin up or down first?
How to Pan-Sear Salmon Fillets. Always start with the fillets skin-side down. While the salmon will cook on both sides, the process should always start by adding the fish to the pan skin-side down. The skin is tough and durable, and can withstand more time on the hot surface of the pan without overcooking the salmon.