4 skin-on salmon fillets (6 oz / 170 g each) 1 tsp kosher salt, plus more to taste 1 / 2 tsp freshly ground black pepper 2 tbsp (30 ml) olive oil 1 tsp finely grated lemon zest Lemon wedges, for serving 3 / 4 cup (180 ml) plain Greek yogurt (or sour cream) 2 tbsp (30 ml) mayonnaise (optional for extra richness) 3 tbsp finely chopped fresh dill, plus more for garnish 2 tbsp (30 ml) fresh lemon juice 1 tsp Dijon mustard 1 small garlic clove, finely grated or minced 1 tbsp capers, rinsed and chopped (optional) 1 / 2 tsp honey or sugar (optional, to balance acidity) 1 / 4 tsp kosher salt (for sauce), or to taste Pinch of black pepper (for sauce)
Make the dill sauce: In a bowl, stir together the Greek yogurt, mayonnaise, dill, lemon juice, Dijon, garlic, capers, honey, 1/4 teaspoon salt, and a pinch of pepper until smooth. Taste and adjust seasoning with more lemon, salt, or dill as desired. Cover and refrigerate while you cook the salmon (10–20 minutes). Season the salmon: Pat the fillets very dry with paper towels. Sprinkle all over with 1 teaspoon salt, 1/2 teaspoon pepper, and the lemon zest. Let sit at room temperature for 10 minutes to take the chill off. Sear the salmon: Heat the olive oil in a large nonstick or well-seasoned skillet over medium-high until shimmering. Place salmon skin-side down and press gently with a spatula for 10–15 seconds to keep it flat. Cook without moving until the flesh is opaque about 2/3 of the way up and the skin is crisp, 4–6 minutes (reduce heat if the oil smokes). Finish cooking: Flip the fillets and cook 1–3 minutes more for medium (internal temperature 125–130°F / 52–54°C), or to your preferred doneness. For very thick fillets, you can transfer the skillet to a 400°F / 205°C oven for 3–5 minutes to finish. Rest: Transfer salmon to plates and let rest 2–3 minutes. Serve: Spoon the chilled dill sauce over or under the salmon. Garnish with extra dill and serve with lemon wedges.
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