Place the rack in the top third of the oven and preheat the broiler.
While fish is cooking, prepare Spiced Rum Sauce and keep warm.
In a small bowl, combine butter, salt and pepper. Brush fish with mixture.
Place fish on a greased broiler pan. Broil for about 10 minutes or until it flakes easily with a fork.
Combine rum and lime juice in a small saucepan. Simmer over medium heat for 4 to 5 minutes or until reduced by about one-third. Add butter, garlic, jalapeno, salt, pepper and water and combine until smooth. Mix in the pureed banana and simmer just until heated through. Remove from heat and stir in parsley. Spoon over the cooked fish.
Contributed by Joyce Taylor MM2