Grilled Shark with Barbecue Sauce - serves 6

2 lb Shark steaks or other firm-fleshed fish
2 tbsp butter
1/3 cup chopped onion
1 clove garlic, minced
1/2 cup water
1/4 cup vinegar
2 tbsp brown sugar
1 tsp Worcestershire sauce
1/2 cup catsup

Rinse shark with cold water; pat dry with paper towels. Set aside.
In medium saucepan, melt butter. Add onion and garlic; saute until tender but not browned. Stir in remaining ingredients.
Bring to boil, stirring frequently. Reduce heat and simmer for 10-15 minutes until sauce is thickened. Remove from heat. Baste shark with sauce.
Place on well-greased grate 4-5 inches from hot coals and cook 4-5 minutes. Baste and turn; cook an additional 4-5 minutes, or until shark flakes when tested with a fork.