Preheat broiler with oven rack 5.5 inches from heat. Sprinkle salmon with salt and garlic powder. Melt butter in large skillet over medium heat. Add salmon, skin side up, cook 2 minutes. Place salmon, skin side down, on lightly greased rack in a broiler pan; brush with half of syrup. Broil 5-7 minutes or until fish is cooked to desired doneness and syrup caramelizes. Brush with remaining syrup and sprinkle with chives.