Place ingredients in a small mixing bowl and stir to combine. This salad is best if made right before the salmon is cooked to preserve the crispness of the apples and cucumber; if you're not overly concerned with crispness, you can make this up to a day ahead and store in the refrigerator till ready to serve. The lemon juice will keep the apples from browning.
Preheat broiler to high. Combine sugar, salt and spices in a medium mixing bowl. Pat salmon filets dry and set aside. Fill the bottom of a baking dish with the spice rub. Dip top side of each salmon filet into the rub to coat with a thin, even layer of spices. Only one side should be coated.Line a baking sheet tray with foil and grease the foil with nonstick cooking oil spray. Place the filets on the foil-lined sheet tray, spiced side facing up. Spray the tops of the filets with a light layer of cooking oil spray.
Broil on high about 6 inches below the broiler for 4-6 minutes, or to desired doneness. The tops of the filets should look slightly caramelized and glistening. Cooking time will vary based on the thickness of the filet; don't overcook or the salmon will become dry.Use a slotted spoon to top each piece of salmon with a scoop of the Green Apple Salad (the slotted spoon will keep excess liquid from soaking the top of the filet). Serve immediately.
