LONDON BROIL

1 lb flank steak
2 medium onions, thinly sliced
1/4 teaspoon salt
1 tablespoon butter
2 tablespoons vegetable oil
1 teaspoon lemon juice
1/2 teaspoon salt
2 cloves garlic, crushed
1/4 teaspoon pepper
Cook onions and salt in margarine till onions are tender; keep warm.
Mix remaining ingredients and brush onto beef.
Cook beef in 550° oven 2 to 3 inches from heat till brown.
Turn and put on more oil mixture.
Cook 5 more minutes.
Cut across grain.