Set oven control to broil. Grease broiler pan rack.
Place fish on rack in broiler pan. Broil with tops about 4 inches from heat 4 minutes; turn. Broil about 4 minutes longer or until fish flakes easily with fork.
Brush grill rack with vegetable oil.
Heat grill to medium heat.
Place fish on grill rack. Cover and grill 5 to 6 inches from heat 10 to 20 minutes, turning once, until fish flakes easily with fork. Meanwhile, mix remaining ingredients; spoon onto fish during last minute of cooking.