1/2 c. chopped onion
1/2 tsp. celery salt
1/2 tsp. pepper
1/2 c. salad oil
1/2 tsp. thyme
1/2 tsp. oregano
1/2 c. lemon juice
1/2 tsp. rosemary

Combine ingredients and marinate thick chuck, round or flank steak 4 to 5 hours or overnight, turning several times. Broil, basting with remaining sauce.