About a week ago GFW posted a recipe from "hankern'2grill" for sirloin steak marinated in a teriyki based marinade. one of the things mentioned was the ability of the marinade to tenderize the steak. I used the marinade on a bottom round beef roast. First let me say that the flavor was GREAT. However, either I need a stronger tenderizer or the beef I am buying is tough enough to kick start a 747. As I said I liked the Flavor of the Marinade which was equal parts teriyki sauce, frozen pineapple concentrate, and burgandy wine the marinade took 48 hours. this was a 4 pound roast which I cut into at 1 inch intervals to allow the marinade to penatrate deep into the meat.
Are there any suggestions as to wehat can be done to tenderize this cut of meat other than a crock pot for 10 hours??