In a small bowl, combine butter, brown sugar, soy sauce, lemon juice and wine. Place salmon in a Ziploc bag and pour in the marinade. Refrigerate for 1-6 hours.
Preheat oven to 450°F. Place the salmon with the marinade in a baking dish and bake for 20 minutes. Then broil for an additional 2 minutes.
Prepare the sauce: In a heavy saucepan, combine cream, mustards, Worcestershire, basil and peppers. Cook, stirring, over medium heat until thick, about 5 minutes. Add sour cream and stir well. Spoon the sauce over each salmon portion.
Serve and enjoy!
Notes
Recipe source: Enjoy Cooking: The Costco Way
Recipe by Salu Salo Recipes at https://salu-salo.com/salmon-creole-mustard-sauce/