1 flank steak
2 tsp of meat tenderizer
2 tbsp of instant minced onion
1 tsp of marjoram
2 tsp of thyme
1 crush bay leaf
1 cup of red wine vinegar
1/2 of cooking oil (or olive oil)
3 tbsp of lemon juice
1/4 cup of coarse pepper or 2 tbsp of regular pepper
Cut slits in the steak, across the grain. Sprinkle both sides of steak with the meat tenderizer.
Mix together all other ingredients and pour over the steak. Let it marinate for 12-24 hours or more in the refrigerator, turning occasionally. The longer it sits the stronger the flavor.
Pour off the mixture, setting some aside for au jus.
Grill the steak about 10 minutes a side, or longer, depending on how you like your steak.