Roast Or Steak Marinade(The Very Best!!!) - cooking recipe

Ingredients

3 -4 lbs sirloin tip roast or 4 -6 steaks
1 large onion, quartered
Adolph's meat tenderizer
1 cup vegetable oil
1/2 cup soy sauce
1/2 cup steak sauce

Preparation

Dampen roast or steak with water. Pierce with a fork. Liberally coat with meat tenderizer, place in bowl or dish & set aside. Mix remainder of ingredients and pour over meat.
Marinate at least 4 hours or overnight.
Grill or cook how you prefer.