1. Combine mustard through lime zest in a small bowl. Pour over salmon. Marinate in the refrigerator for 30 minutes. 2. Prepare grill to 350-400 degrees. Place soaked plank on grill grates and close lid. Heat plank for two to three minutes or until a light smoke develops. 3. Flip plank and place fish on heated side of plank (reserve remaining marinade.) Grill with lid closed for five to 8 minutes. Open lid and drizzle with remaining marinade. Close lid and continue to cook for an additional five to eight minutes or until salmon is medium done.
