When it comes to summer grilling, there’s one recipe that’s stood the test of time, been around forever and has kind of a cult following, even today. It’s Teriyaki Marinated Steak. You might just know it as London Broil. And it IS an American classic in spite of the name London Broil and that scrumptious Asiany marinade. More on that, below. I know I’m not alone in this memory, when way back in the 70s, on a pretty regular basis, my Mom would marinate up this Teriyaki Steak and Dad would cook it up outside on the grill.