Peppercorn Crusted Porterhouse Steaks with Chipotle Chimichurri

See How It’s Done

I’ve been cooking steaks over coals for years, and this peppercorn crusted porterhouse method is hands down the best way to get a perfect crust. You’re putting a cast-iron pan right on top of hot coals, searing the steaks fast and hard, then moving them to indirect heat to finish cooking. The chipotle chimichurri is spicy and smoky, which works great with the peppery crust. If you’ve never cooked a steak this way, don’t worry. I’ll walk you through every step so you know exactly what to do.

The whole process takes about 25 minutes once your grill is ready. You’re not using a regular grill grate for the sear. Instead, you’re using a cast-iron pan directly on the coals because it gets way hotter and gives you better control. The heat is intense, so you only need about 90 seconds per side to get a good crust. After that, you move the steaks away from the coals to cook them through without burning the outside. It’s a two-step process that makes restaurant-quality peppercorn crusted steaks every time.

Why Cooking in Cast Iron Over Coals Works Better

Most people just throw steaks on a grill grate and hope for the best. That’s fine, but it doesn’t give you the same crust you get from using a cast-iron pan over coals. When you put a pan directly on hot coals, you’re getting way more heat than a regular grill. We’re talking 500-600°F, which is what you need to get that dark brown crust in under two minutes per side.

The pan also gives you more control. When you cook on a grate, fat drips down and causes flare-ups that can char your steak unevenly. With a pan, the fat stays in the pan and helps fry the peppercorn crust without burning it. The pepper toasts in that hot oil and develops a nutty flavor instead of just tasting like raw pepper.

After you sear both sides, you move the whole thing to the cooler side of your grill. This is called indirect heat, and it’s how you cook the inside of the steak without burning the outside. Close the lid and let it cook until it hits your target temperature. Pull it off, let it rest with some butter on top, and you’re done. It’s not complicated once you understand the two steps: hard sear, then gentle finish.

What Makes Chipotle Chimichurri Different

Regular chimichurri is parsley, garlic, vinegar, and oil. It’s fresh and bright, which is great on grilled meat. But when you’re cooking steaks over coals with a heavy pepper crust, you want something with more punch. That’s where the chipotle peppers come in. They’re smoked jalapeños packed in a tangy sauce called adobo, and they add serious heat and smokiness to the chimichurri.

I use half parsley and half cilantro because parsley gives you that classic herb flavor, and cilantro adds a little brightness. The lime juice cuts through the richness of the steak and keeps everything tasting fresh. You can make this sauce as spicy as you want by adding more or fewer chipotle peppers. Two peppers give you a solid kick without being overwhelming. One pepper is milder, and three peppers will bring the heat.

The best part is you make this ahead of time and let it sit in the fridge while the steaks cook. That gives the garlic time to mellow out and lets all the flavors blend together. When you spoon it over the finished peppercorn crusted porterhouse, you get smoky, spicy, and herbaceous flavors that work perfectly with the beef.

Tips for Getting It Right Every Time

If you have time the night before, salt your steaks and leave them uncovered in the fridge. This is called dry brining. The salt pulls moisture to the surface at first, then the meat reabsorbs it along with the salt. This seasons the steak all the way through and dries out the outside so you get a better crust. If you dry brine, don’t add more salt before cooking.

Make sure your steaks are at least 1 to 1½ inches thick. Thinner steaks will overcook before you get a good crust. Thicker steaks give you more room for error. When you crack the peppercorns, you want them chunky but not whole. I put them in a zip-top bag and hit them with a heavy pan, or use a mortar and pestle if you have one.

Use an instant-read thermometer to check the temperature. Don’t guess. For medium-rare, pull the steaks when they hit 125°F because they’ll keep cooking while they rest and end up around 130°F. For medium, pull at 135°F. Always pull your steaks about 5 degrees before your target temp and let them rest for 5-10 minutes with butter on top. This lets the juices spread back through the meat instead of running all over your cutting board when you slice it.

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Step-by-Step Instructions

Step 1: Prep the Steaks

Pat your porterhouse steaks dry with paper towels. You need them completely dry on the outside or they won’t brown right. If you salted them overnight, just bring them to room temp for 30-45 minutes before cooking. If you didn’t salt them ahead of time, season both sides with kosher salt now.

Press the cracked peppercorns into both sides of each steak. Really press them in with your hands so they stick. You want an even coat of pepper covering most of the surface. Don’t be stingy with it. The pepper crust is what makes this recipe special.

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Step 2: Sear the Steaks in Cast Iron Over Coals

Get your charcoal grill going and pile the coals on one side. You want them glowing red and covered in ash. Put your cast-iron pan right on top of the coals and let it get smoking hot. This takes about 5-7 minutes. Add 1-2 tablespoons of high-heat oil like avocado or canola to the pan. The oil should start smoking almost right away.

Put the steaks in the pan carefully. You’ll hear a loud sizzle right away. That’s good. Don’t move them around. Let them sit for 90 seconds. This is when the crust forms. After 90 seconds, flip them and sear the other side for another 90 seconds. Keep an eye on the pepper so it doesn’t burn. If it’s getting too dark, shift the pan a little to move it away from the hottest coals.

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Step 3: Finish Cooking with Indirect Heat

After both sides are seared, move the pan to the other side of the grill away from the coals. You can also take the steaks out of the pan and put them directly on the grill grate if you want. Either way works.

Close the grill lid and let the steaks cook through. Use your thermometer to check the temp. Stick it into the thickest part of the steak. For rare, you want 120°F. For medium-rare, aim for 130°F. For medium, go for 140°F. Remember the temp will go up another 5 degrees or so while the steaks rest, so pull them a little early.

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Step 4: Make the Chipotle Chimichurri

While the steaks are finishing, mix up your sauce. In a bowl, combine the chopped parsley, cilantro, minced chipotle peppers, chili flakes, oregano, lime juice, olive oil, garlic, and a pinch of salt. Stir it all together.

Taste it and adjust. Need more heat? Add another chipotle. Want it brighter? Add more lime juice. When it tastes good to you, cover it and stick it in the fridge until the steaks are done.

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Step 5: Rest the Steaks

When the steaks hit your target temp, take them off the grill. Put a pat of butter on top of each one right away. The butter will melt into the steak and make it taste even better.

Let them sit for 5-10 minutes. Don’t skip this. The steaks need to rest so the juices redistribute through the meat. If you cut into them right away, all the juice runs out and your steak ends up dry.

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Step 6: Slice and Serve with Chipotle Chimichurri

After the steaks have rested, slice the meat off the bone. The porterhouse has two sections: the strip steak on one side and the tenderloin on the other. Cut each section into thick slices, cutting across the grain so the meat stays tender.

Get your chipotle chimichurri from the fridge and give it a stir. Spoon it over the sliced steak or put it in a bowl on the side. The combo of the peppery crust, the beef, and that smoky spicy sauce is really good. Serve it with fries, grilled veggies, or roasted potatoes.

FAQ

Can I use a different cut of steak instead of porterhouse?

Yeah, you can definitely use ribeye or New York strip if that’s what you’ve got. The porterhouse is nice because you get two different steaks in one, but ribeye and strip work just as well with this peppercorn crust. Just make sure whatever you use is at least 1 to 1½ inches thick so you don’t overcook it while you’re trying to get a good sear.

What if I don’t have a cast-iron pan for grilling over coals?

You can still make this work. Just sear the steaks directly on a clean, oiled grill grate over the hottest part of your coals. It’ll take a little longer, maybe 2-3 minutes per side, and you won’t get quite the same even crust, but it’ll still taste great. If you have a heavy stainless steel pan, that works too.

How spicy is the chipotle chimichurri, and can I adjust the heat?

With two chipotle peppers, it’s got a solid kick but it’s not crazy hot. The smokiness is really the main thing you taste. If you don’t like spicy food, start with just one pepper and one teaspoon of chili flakes. You can always add more. If you love heat, throw in a third pepper or extra chili flakes. The lime juice helps balance it out so it doesn’t taste like straight heat.

Do I really need to dry brine the steaks overnight?

No, it’s optional. If you have time, do it because it makes the crust better and seasons the meat all the way through. But if you’re cooking same-day, just salt the steaks right before you cook them and they’ll still be really good. The dry brine just takes them up a notch.

How do I know when my steak is done without a thermometer?

Honestly, get a thermometer. They’re cheap and they take the guesswork out. You can use the hand-touch method where you compare the firmness of the steak to different parts of your palm, but it’s not as accurate. For expensive steaks like porterhouse, you don’t want to mess it up by guessing. A good instant-read thermometer will pay for itself the first time you use it.