Porterhouse Steak Guide
Two steaks in one: strip and tenderloin divided by a T-shaped bone.

At a glance
A porterhouse joins strip and tenderloin on opposite sides of a T-shaped bone. That makes it a shared-steak option and a lesson in managing two muscles at once. The generous tenderloin side is the important distinction from a T-bone; overall weight by itself does not establish which cut you are buying.
Buying
Compare the actual tenderloin portion, thickness and fat trim. Ask how many people the usable meat will feed, especially when buying a very large steak. A thick bone can interfere with contact in a skillet, so check whether the steak fits your equipment before purchasing.
Cooking
A two-zone grill is useful because you can keep the tenderloin toward gentler heat and the strip toward more heat. A reverse sear can also help a thick steak. Measure both sides independently, staying away from the bone with the probe tip.
Avoid this: Trying to cook both sides by one timer is the main trap. If the tenderloin finishes first, reposition the steak to protect it. After resting, separate each muscle from the bone, identify its grain and slice it separately. Presenting both cuts in slices makes sharing easier.
Check the center with a thermometer and use the doneness chart. Choose cast iron, grilling or reverse sear to suit the steak’s thickness.
Alternatives
Choose T-bone when you want the bone-in strip experience without paying for as large a tenderloin portion. Read the T-bone guide and compare current prices for similar weight and trim.

