Peel the oranges so that the white skin is also removed, fillet them and collect the juice. Clean and wash the leek and cut into very fine rings. Fry in 3 tablespoons of hot oil for about 2 minutes. Fry the pine nuts and raisins for about ½ minute. Serve everything with the orange fillets.
Put 1 tablespoon of oil with vinegar and the collected orange juice in the pan, season with salt, pepper and sugar, add a little orange juice if necessary. Drizzle the sauce over the salad.
Rinse the salmon fillets, pat dry and cut into bite-sized pieces. Fry in hot butter for about 4 minutes, turning once. Salt and pepper. Place the salmon pieces on the salad.