Combine vinegar, oil, lemon grass and ginger. Marinate salmon in zip-lock bag or baking dish for 45 minutes – 2 hours. Preheat oven to 425
Place salmon and marinade in small baking dish (remove lemon grass and ginger). Place in oven and bake until done, about 15 minutes. Remove and let sit for 4-5 minutes to allow for carry over cooking and serve with salt and pepper to taste and garnish with orange slices.