Salmon al ajillo is a Spanish-inspired weeknight dish where salmon fillets are seared until golden, then bathed in a sizzling garlic-infused olive oil and butter sauce with a hint of smoked paprika. It’s quick, deeply flavorful, and works with fresh or frozen salmon, making it a reliable go-to for a restaurant-quality dinner at home. The key is controlling the heat so the garlic turns golden, not bitter, and the fish stays moist and flaky.
Ingredients
- 4 salmon fillets (about 6 oz / 170 g each), skin on or off
- 1 tsp (5 g) kosher salt, plus more to taste
- 1/2 tsp (1 g) freshly ground black pepper
- 1/2 tsp (1 g) smoked paprika (optional but recommended)
- 2 tbsp (30 ml) olive oil, divided
- 6 cloves garlic, thinly sliced
- 3 tbsp (45 g) unsalted butter, cut into pieces
- 2 tbsp (30 ml) dry white wine or chicken broth
- 1 tbsp (15 ml) fresh lemon juice (about 1/2 lemon)
- 2 tbsp (8 g) chopped fresh parsley, for garnish
- Lemon wedges, for serving
Instructions
- Pat the salmon fillets dry with paper towels. Season both sides with salt, pepper, and smoked paprika if using. Let sit at room temperature for 10 minutes while you prep the garlic and other ingredients.
- Heat 1 tablespoon (15 ml) of the olive oil in a large nonstick or cast-iron skillet over medium-high heat. When the oil shimmers, place the salmon fillets skin-side down (if skin-on) or presentation-side down (if skinless). Cook without moving for 4–5 minutes, until the bottom is golden and the fish releases easily from the pan.
- Flip the fillets and cook for another 2–4 minutes, depending on thickness, until the internal temperature reaches 145°F (63°C) as measured with a food thermometer in the thickest part. Transfer the salmon to a plate and tent loosely with foil.
- Reduce the heat to medium-low. Add the remaining 1 tablespoon (15 ml) olive oil and the sliced garlic to the skillet. Cook, stirring constantly, for 1–2 minutes until the garlic is fragrant and just starting to turn golden. Do not let it brown too much, or it will become bitter.
- Add the butter and let it melt, then pour in the white wine (or broth) and lemon juice. Stir and scrape up any browned bits from the bottom of the pan. Let the sauce bubble for 1–2 minutes until slightly thickened.
- Return the salmon to the skillet, spooning the garlic-butter sauce over the top. Cook for 1 minute to warm through.
- Remove from heat, sprinkle with parsley, and serve immediately with lemon wedges.
Tips
- Use a thermometer: Fish is safely cooked at 145°F (63°C) per the USDA FSIS. Overcooking is the most common mistake—check early, as carryover cooking will raise the temperature a few degrees after you remove it from the pan.
- Slice garlic thinly and uniformly: Thin slices cook evenly and are less likely to burn than minced garlic. If you prefer a milder garlic flavor, remove the green germ from the center of each clove.
- Don’t crowd the pan: Cook the salmon in batches if your skillet is small. Overcrowding lowers the pan temperature and steams the fish instead of searing it.
- Substitutions: No white wine? Use chicken or vegetable broth with a splash of vinegar. For a dairy-free version, replace butter with extra olive oil or a plant-based butter substitute.
Serving Suggestions
Serve the salmon al ajillo with crusty bread to soak up the garlic-butter sauce, or over a bed of rice, quinoa, or roasted potatoes. A simple green salad or sautéed spinach balances the richness. For a low-carb option, pair with steamed broccoli or zucchini noodles.
Variations
- Add heat: Toss in a pinch of red pepper flakes or a sliced fresh chili along with the garlic for a spicy kick.
- Tomato twist: Stir in 1/2 cup (120 ml) of cherry tomatoes halved, and let them burst in the sauce for a touch of sweetness.
- Herb swap: Replace parsley with fresh dill or cilantro—both work beautifully with salmon.
- Make it a one-pan meal: Add sliced mushrooms or baby spinach after the garlic, and wilt them before returning the salmon.
Storage and Reheating
Refrigerate leftovers in an airtight container within 2 hours of cooking. They will keep for up to 3 days. To reheat, place the salmon in a skillet with a splash of water or broth over medium-low heat, covered, for 3–5 minutes, until warmed through. Avoid the microwave, which can dry out the fish. The sauce may separate slightly upon reheating; stir in a little extra butter or olive oil to bring it back together.
Frequently Asked Questions
Can I use frozen salmon? Yes, thaw it overnight in the refrigerator, then pat it very dry before searing. Do not cook it from frozen, as it will not brown properly and may cook unevenly.
What if I don’t have white wine? Use chicken or vegetable broth instead, and add a teaspoon of lemon juice or white wine vinegar to mimic the acidity. The flavor will be slightly different but still delicious.
Why is my garlic burning? The heat is too high or the garlic is left unattended. Always cook garlic over medium-low heat and stir constantly. If it turns dark brown or black, discard it and start over—burned garlic tastes bitter.
How do I know when the salmon is done? Use a food thermometer inserted into the thickest part of the fillet; it should read 145°F (63°C). The flesh should also flake easily with a fork, but the thermometer is more reliable.
Can I make this with other fish? Absolutely. Firm white fish like cod, halibut, or sea bass work well. Adjust cooking time based on thickness—thinner fillets will cook faster.
Is it okay to leave the skin on? Yes, the skin helps hold the fish together and gets crispy when seared. If you prefer skinless, that’s fine too—just reduce the first-side cooking time by a minute.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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