Planked Maple-ginger Salmon

Soak plank in warm water for 30 minutes. Combine vinegar, syrup, ginger and oil in a small bowl. Place salmon in a zip-lock bag or shallow dish and brush with half of maple mixture. Preheat grill to high. Place soaked plank over grill. When it starts to smoke, flip and lay lemon slices over toasted side. Place salmon skin side down on top of lemons and sprinkle with salt. Cook, lid closed, 5 minutes. Brush with some of the reserved maple mixture. Continue cooking until salmon flakes slightly when pressed, 10 to 15 minutes. Remove from plank. Drizzle with maple mixture.