I cooked this Salmon using a smoker; If you do not have a smoker, follow the directions at the bottom of the page.
Preheat smoker to 350 degrees. Pour olive (or avocado) oil, dijon mustard, soy sauce, lemon juice, into a small mixing bowl.
Finely mince garlic and ginger. Incorporate garlic, ginger—the ginger adds a strong, tangy flavor to the marinade, use is optional—and cayenne pepper into salmon marinade (feel free to add as much or little of cayenne as you'd like depending on personal preference).
Marinade Salmon filet in sauce for a minimum of 15 minutes. Place marinated Salmon on a cookie-sheet and top with lemon slices (optional). Smoke at 350 degrees for about 40 minutes.
Remove from smoker and serve over roasted vegetables.
For Oven Baked Instructions: Preheat oven to 375 degrees. Follow marinading instructions. Place in oven and bake for 15-20 minutes (until fully cooked). Remove from oven, plate and serve!