1. To make the fish rub, combine all ingredients in a small bowl and mix well. Store in an airtight container until needed.2. To make the citrus butter, put all ingredients into a KitchenAid with paddle attachment.3. Mix on medium until all ingredients are incorporated.4. Cover and refrigerate until needed.5. Soak cedar plank in water overnight.6. Drizzle oil over salmon and gently rub in the fish rub.7. Place salmon in fridge uncovered for about 4 hours.8. Heat grill to 400 degrees F.9. Place salmon in center of cedar plank and put plank in the center of the grill.10. Cook until internal temperature reaches 130 degrees F.11. Remove from grill and brush with citrus butter.12. Serve with lemon wedge and grilled asparagus (for an extra special touch).