1/3 c. lemon juice
1 tsp. lemon rind
2 tsp. horseradish
1 clove garlic, halved
1/2 tsp. dried whole oregano
1/2 tsp. dried whole basil
1/2 tsp. salt
1/4 tsp. pepper
1/3 c. olive oil
8 x 4 oz. grouper fillets
Vegetable cooking spray

Combine first 8 ingredients in container of an electric blender or food processor. Process 20 seconds with motor running. Gradually add olive oil in a slow, steady stream. Set aside. Arrange fish in 13 x 9 x 2 inch baking dish. Pour marinade over fish, turning to coat both sides. Cover and refrigerate 8 hours. Arrange fish in a fish basket coated with cooking spray; grill covered, over medium hot coals 7 to 8 minutes on each side or until fish flakes with fork, basting frequently with marinade.