where does t-bone come from on a cow
A porterhouse steak is a T-bone steak, but what gives it its name is the tenderloin. The tenderloin has to be at least 1.5 inches wide at to be called a porterhouse. If the tenderloin is under 1.5 inches thick then its just a plain old T-bone. Ribeye, T-bone, porterhouse, strip steak, and tenderloin all come off the spine of the Cow.