This Mealplanner101 Minute reveals a secret to baking salmon to perfection. 1. Preheat your oven on 390 degrees Fahrenheit. 2. Season a salmon fillet with salt. 3. Put some olive oil and lemon juice. 4. Bake it for 12 minutes. 5. Take about 1/4 inch cut of the salmon, so that the fish oil will ditch in to the plate. 6. Place the fish in to the oven and set it for 2 minutes. 7. Check if the oil changed from clear to opaque or white. If not, continue cooking 1 minute at a time. Once it's opaque, your fish is done.