In a medium bowl, combine maple syrup, bourbon, orange juice, soy sauce, garlic, cayenne, salt, and pepper.
Place salmon in a shallow baking dish. Add liquid mixture to dish, submerging fillet; refrigerate and marinate for 30 minutes.
Drain most of marinade from baking dish, and reserve. Bake salmon for 10-15 minutes (adjust cooking time depending on thickness of fillet and desired doneness).
While salmon cooks, pour marinade into sauce pan. Bring to a boil then reduce heat to low and let simmer until liquid thickens into a glaze-like consistency, about 10 minutes. Remove from heat and top salmon with glaze. 4 servings