A black and blue steak is charred on the outside and rare (nearly raw) on the inside. The “black” refers to the deeply seared, crispy crust, while “blue” refers to the cool, red-to-purple interior that defines a blue rare doneness. It’s one of the most dramatic ways to cook a steak, and the contrast between the smoky, caramelized exterior and the soft, barely cooked center is the whole point.
This preparation goes by several names depending on where you are. In parts of the Midwest and Eastern Seaboard, it’s called “Pittsburgh rare.” In Pittsburgh itself, locals tend to call it “black and blue.” You might also hear “Chicago-style rare.” They all describe the same technique: blast a steak with extreme heat for a very short time.
How It Differs From Other Doneness Levels
Most steak doneness levels are about controlling how much heat reaches the center of the meat. A medium steak has a warm pink middle; a rare steak has a cool red center. Black and blue takes the rare concept further. The interior stays at or near raw temperature, sometimes cool to the touch, while the surface gets hotter than almost any other preparation.
A standard rare steak is seared at moderate-to-high heat and pulled early, giving it a browned exterior and a red center that’s slightly warm throughout. A black and blue steak skips the gradual warming entirely. The crust isn’t just browned; it’s genuinely charred. And the inside isn’t just red; it can be purple, soft, and almost the same texture as the raw meat before it hit the heat. That juxtaposition of crispy and silky, smoky and beefy, is what makes this preparation distinctive.
The Pittsburgh Steel Mill Story
The most popular origin story ties this technique to steelworkers in Pittsburgh. The idea is that mill workers, with limited time for lunch, would slap steaks directly onto the scorching-hot metal surfaces in the mill. The extreme heat charred the outside in seconds while leaving the inside untouched. Whether or not this story is historically precise, it explains why “Pittsburgh rare” stuck as a name and why the technique demands such intense heat. You can’t replicate this with a medium-hot pan. The fire has to be fierce.
How Black and Blue Steak Is Prepared
The key to a proper black and blue steak is maximizing the temperature difference between the surface and the center. Professional cooks typically get a cast-iron skillet or grill grate as hot as possible, often well above 500°F, before the steak goes on. The steak cooks for just one to two minutes per side. That’s enough to develop a deep char but not enough for heat to penetrate more than a few millimeters into the meat.
Some cooks start with a cold or even frozen steak to exaggerate the contrast. A frozen steak’s center stays raw longer because the heat has to work through a much greater temperature gap. This is the opposite of the usual advice to let steaks rest at room temperature before cooking, but for black and blue, that usual advice doesn’t apply. The goal is specifically to keep the interior from warming up.
Ribeyes present a particular challenge here. They’re well-marbled with fat, and fat that hasn’t been heated long enough can feel waxy and unpleasant on the tongue. One workaround is to warm the steak in a very low oven (around 120°F) for about an hour before searing. This softens the fat without actually cooking the protein, so when the steak hits the grill, you get a proper char without the raw-fat texture that can make a ribeye unappetizing at this doneness.
Best Cuts for Black and Blue
Because the interior barely cooks, you want cuts with minimal fat and connective tissue. Fat needs sustained heat to render and become enjoyable, and tough connective tissue needs time to break down. Neither gets that opportunity in a one-minute sear.
- Tenderloin (filet mignon): The classic choice. It comes from a part of the cow that does almost no work, so it has very little fat or tough tissue. The result is buttery-soft meat that tastes great at near-raw temperatures.
- Flat iron: Cut from the shoulder, this is widely considered the second-most tender cut after tenderloin. It’s also more affordable, making it a practical option for trying this technique at home.
- Sirloin tip: From the rear leg, this cut has a bit more muscle structure than tenderloin or flat iron, so it’s slightly firmer. But it’s still lean enough to work well and brings more beefy flavor to the table.
Heavily marbled cuts like ribeye or wagyu-style steaks aren’t ideal unless you use the low-oven trick described above. Strip steaks fall somewhere in between and can work if they’re on the leaner side.
What It Tastes Like
The first thing you notice is the crust. A well-executed black and blue steak has a thin, almost brittle shell with intense smoky, caramelized flavor from the Maillard reaction pushed to its extreme. Beneath that shell, the transition is sudden. Within a couple of millimeters, you go from charred and crunchy to cool, soft, and deeply red. The interior tastes clean and mineral-rich, closer to beef tartare or carpaccio than to a cooked steak. The texture is silky rather than chewy.
Not everyone loves it. If you prefer your steak warm throughout or find the idea of raw beef unappealing, black and blue isn’t going to convert you. But for people who already enjoy rare steak and want to push the experience further, the combination of a hard sear with an almost-raw center creates a range of flavors and textures in every bite that no other doneness level matches.
Ordering Black and Blue at a Restaurant
If you want to try this at a steakhouse, ask for your steak “black and blue” or “Pittsburgh rare.” Most high-end steakhouses will know exactly what you mean. At more casual spots, you might need to explain: charred outside, rare inside. Some menus list it explicitly, but many don’t, since it’s a niche request.
Keep in mind that not every kitchen can pull this off well. The technique requires extremely high heat and precise timing. If the grill or pan isn’t hot enough, you’ll end up with a steak that’s just unevenly cooked rather than deliberately contrasted. Restaurants with dedicated charcoal grills or infrared broilers tend to produce the best results.