Teriyaki chicken is grilled chicken with teriyaki sauce. It is a special sauce made from soy sauce, mirin, and sugar. Teri means shine and yaki means grilled. Mirin and suger makes the sauce shine on top of the grilled chicken. Teriyaki sauce can be used with yellow tail, pork, beef, squid, hamburger and other dishes. If you want a quick taste of teriyaki flavor in Japan, you better try McDonald's "Teriyaki McBurger". It is the fast food chain's best seller.