Pierce steaks with fork several times on each side. Place steaks and Yaki in a Zip-lock bag. Marinate in refrigerator for at least one hour. Remove from refrigerator and let stand 20 minutes at room temperature.

Grill steaks for 3 minutes on each side or until desired temperature. (Rare/130º, Medium Rare/145°, Medium/160°, Medium Well/165º, Well Done/170º) Remove from Grill, let stand 5 minutes and serve.