How to Grill a T-Bone or Porterhouse Steak
You’ve just come from the butcher shop with the perfect two-inch thick steak that’s going to make you the hero of tonight’s dinner. You definitely don’t want to mess this up; you want it to be the best-grilled steak ever, so you hit up Google for advice. You search “How to grill a T-bone steak” or “How to grill a Porterhouse steak,” and you may even be curious what the difference is. After all, they both come from the short loin.
Below, I’ll outline a very simple step-by-step process for grilling these steaks and dispel a few myths along the way. In the world of outdoor cooking, there are no shortages of opinions about the best way to grill a steak, but you may be surprised at how wrong some commonly accepted “rules” are.
Key Points
When grilling these, or any thick cut of meat, use the reverse sear process described in this blog. Searing first to “lock in the juices” is a myth. I have no idea how that rumor started, but it’s nonsense for thick cuts of meat.
You don’t have to use a charcoal grill to grill a great steak—that’s also a myth. You can use either a gas grill or a charcoal grill to cook steaks (you can even use an oven and cast iron pan if you don’t have a grill). Just set either grill up with a direct high-heat side and an indirect low-heat side. Ask yourself, how many high-end steakhouses use charcoal?
Grill marks from hot grill grates are sexy, but those grill marks are where the flavor comes from. This is a result of the Maillard reaction, and we want that flavor all over the steak, not just in strips.
Have you heard the neighborhood grilling expert claim that when you’re grilling a steak you should “only flip it once” as it cooks? Yeah, also a myth. In fact, flip it and rotate it often when searing; this is how you build that incredible crust that is the perfect complement to the juices inside of the steak.
Resting the steak is essential. Resting is simply leaving the steak alone for a period to allow the juices to reincorporate back into the meat. I’ve cut into a steak rested for various lengths of time and find that with a thick cut T-bone or Porterhouse, resting for about 5 minutes is plenty of time.
How to Grill a T-bone or Porterhouse Steak | Step by Step directions
- Bring Steak to TemperatureTake your steak out of the refrigerator and allow it to come closer to room temperature for about an hour.
- Prepare SteakRub a light coat of olive oil all over your steak and season it generously with kosher salt. Many people recommend using salt and pepper, but I find that pepper gets bitter when exposed to high direct heat, so if you like pepper, always add it after the steak is off the grill.
- Set Up Two-Zone GrillingLight your grill on one side and set it up for two-zone cooking. Establish a temperature on the indirect side of the grill at 225 degrees F. For charcoal, just pile coals on one side of the grill; for gas, only light one side of the burners.
- Proper Steak PlacementThe placement of the T-bone or Porterhouse is crucial. Both cuts are made up of a strip steak on one side of the bone and a filet on the other. Because the strip contains more fat than the filet, it will cook slower. When you place the steak on the indirect side of the grill, keep the filet side furthest from the heat to prevent it from drying out.
- Grill SteakUsing a reliable leave-in meat thermometer, allow your steak to cook to an internal temperature of between 123 and 125 degrees F for a perfect medium-rare finish.
- Raise Grill TemperatureRemove your steak from the grill while you crank the heat on a gas grill or stoke the coals of a charcoal grill. The idea is to sear this steak over the hottest surface possible.
- Sear SteakPlace the steak directly over the hottest portion of your grill, flipping and rotating about every 30 to 45 seconds.
- Turn Steak as You SearSearing the steak for a total of about three minutes per side will generally produce a nice crust and bring the internal temperature of the steak to about 127-130 degrees F. Perfect for medium-rare.
- Let Steak RestRemove the steak from the grill and let it rest for 5-7 minutes before slicing into it.
