Teriyaki is a Japanese technique of marinating meat (usually beef, pork, or chicken) in a soy sauce-based seasoned marinade before frying, grilling, or broiling it at high temperature. Teriyaki is also the name given to condiment sauces likely to be found on supermarket shelves containing similar ingredients. The sugar in this marinade gives the steak a sweet and glossy glaze, but take care when grilling that the flame does not burn it and make it bitter-tasting. You can double the marinade recipe and reserve half as a dipping sauce for the beef. Of course, in Japan you might find teriyaki made with Kobe beef, an exclusive, full-flavored, and very tender variety that is fed liberal amounts of beer and massaged with sake (sounds like quite a life, doesn't it!). However, you may need to take out a mortgage to try it, since this life of luxury makes Kobe beef extremely expensive at upwards of $100 per pound.