Slow-roasted salmon with walnut-olive vinaigrette

Active: 20 minutes; Total 50 minutes; Serves: 6

Olive oil, extra virgin	½ cup + ¼ cup
Paprika, smoked	1 tablespoon
Lemon, zest and juice	1 tablespoon zest + 3 tablespoons juice
Salmon	2 ½ pounds
Salt, kosher	2 ½ teaspoon + ¼ teaspoon
Pepper, freshly ground	½ teaspoon + ¼ teaspoon
Parsley, flat leaf, finely chopped	½ cup
Walnuts, toasted, finely chopped	¼ cup
Vinegar, champagne or white wine	¼ cup
Olives, kalamata, pitted, chopped	¼ cup
Olives, Castelvetrano, pitted, chopped	¼ cup

1. Preheat your oven to 325°F; set a rack in the middle position. 
2. Whisk ½-cup oil and paprika in a small bowl; set aside 1 tablespoon of the oil mixture, and then stir the lemon zest and juice into the oil mixture in the small bowl. 
3. Place the salmon in a large baking dish; sprinkle both sides with 2 ½-teaspoons salt and ½-teaspoon pepper (tuck the tapered end of the salmon under if needed to fit in the dish). 
4. Pour the lemon-paprika mixture over the salmon; bake until the thickest party of the salmon flakes easily with a fork, about 30 to 35 minutes, spooning lemon-paprika mixture in the baking dish over the salmon every 10 minutes. 
5. Remove from the oven; let rest 5 minutes. 
6. Whisk together parsley, walnuts, vinegar, olives, and ¼-cup oil in a small bowl; season with ¼-teaspoon salt and ¼-teaspoon pepper. 
7. Using two large spatulas, carefully lift the salmon from the baking dish, and transfer to a large platter; discard remaining lemon-paprika mixture in the baking dish. 
8. Spoon the walnut-olive vinaigrette on the salmon. 
9. Drizzle the salmon with the reserved oil mixture. 
10. Serve warm or at room temperature. 

Recipe from Food&Wine, by Justin Chapple.