Ribs six through ten off the plate or chuck, with a thick slab of well-marbled muscle on top of the bone. Cut lengthwise between the bones it's English style for braising; cut thin across them it's flanken, and it grills in four minutes. Same cut, two entirely different dishes.
Short ribs come from below the rib primal, where the ribs continue down toward the belly after the ribeye has been removed above. Plate short ribs — ribs six to eight — are the big ones, with three to four inches of meat over the bone; chuck short ribs, from further forward, are smaller. The muscle is intercostal and serratus, both hard-working, laced with fat and heavy sheets of connective tissue. English cut separates the ribs into individual bones with the meat sitting on top. Flanken cut runs the saw across all the bones at once, giving thin strips with several bone cross-sections — the Korean kalbi format.
One of the highest combinations of fat and collagen on the animal, which is why it's forgiving in a braise and why it has become the standard for barbecue beef ribs. The collagen needs hours above 160°F to convert; the abundant intramuscular fat renders across the same period and coats the fibers, so unlike a lean cut it doesn't dry out as it passes 180 and 190°F. Cut thin as flanken, the geometry changes everything — a quarter-inch strip cooks through in under two minutes, so there's no time for collagen conversion, and instead the thin slices sever the connective tissue mechanically. That's why flanken works fast and English cut doesn't.
Sustained wet heat converts a very high collagen load into gelatin, and the fat renders into the liquid to make a sauce with real body.
HowBrown hard, then 300-325°F covered with liquid two-thirds up, two and a half to three and a half hours to 200-205°F. Chill overnight in the liquid, lift the fat cap, reheat. This is the dish that most rewards being made a day ahead.
The fat and collagen content survives eight hours of dry heat, and plate short ribs are the cut behind Texas 'dino ribs'.
How250-275°F, unwrapped the whole way for bark, six to nine hours to 203-208°F. Probe should slide in like warm butter. Salt and coarse pepper only — the meat doesn't need more.
Thin cross-cut strips cook through before connective tissue matters, and the marinade's sugar caramelizes hard over direct fire.
HowMarinate quarter-inch flanken in soy, pear, garlic, sesame and sugar for four to twelve hours. Screaming hot grill, ninety seconds to two minutes a side. Any longer and it's leather.
Holds the meat in the collagen conversion band for a long time at a temperature low enough to keep steak-like texture, which no other method achieves.
HowWar between two targets: 133-140°F for forty-eight to seventy-two hours gives a medium-rare texture that's still tender, while 165°F for twenty-four hours gives conventional braise texture. Sear hard after either.
The two cuts share a name and a price bracket and are not interchangeable in either direction. English cut on a grill is the more expensive mistake: a three-inch block of collagen-heavy muscle over direct heat chars on the outside while the interior stays well below the temperature where connective tissue converts, and what comes off is burnt on the surface and rubbery throughout. Flanken in a braise fails the other way — quarter-inch strips have already been mechanically tenderized by the saw, and two hours in liquid pushes the thin muscle far past the point where it holds any water, so it disintegrates into stringy shreds with no texture left. Check the cut direction before you decide the method: bones in a row along one edge means braise, bones as several small circles across the strip means grill.
Ask which primal — plate short ribs are meatier and better for smoking, chuck short ribs are cheaper and fine for braising. Bone-in always; the bone contributes gelatin and the meat shrinks away from it as a doneness cue. Look for a thick, even layer of meat over the bone rather than ribs that have been trimmed close, and real marbling through the muscle. Boneless short rib is usually chuck trim and is not the same thing. For kalbi, ask specifically for flanken cut at a quarter inch — most butchers will do it, and Korean groceries sell it ready cut. Figure one English-cut rib per person, or a pound of flanken for two.
Doneness: Braised or smoked: 200-208°F, with a probe sliding in unresisted as the real test. Flanken: hot and fast, no internal target — pull it at two minutes a side. Sous vide: 133-140°F for 48-72 hours, or 165°F for 24.
Position and meat. Back ribs come from the top of the ribcage after the ribeye is removed, so most of the meat has already been cut away and what's left is between the bones. Short ribs come from lower down and carry a thick slab of meat on top of the bone. Back ribs are cheap and mostly about gnawing; short ribs are a proper piece of meat with a bone attached, and they cost accordingly.
Usually, but check what you're buying. Genuine boneless short rib is the same muscle with the bone removed and works fine in a braise, losing a little gelatin. A lot of what's labelled boneless short rib is actually chuck cut into rib-shaped strips — decent meat, but less marbled and less collagen-rich, so it won't give the same richness. If it's much cheaper than the bone-in, that's usually what it is.
Short rib carries a lot of fat and a braise renders most of it into the liquid, where it sits on top. The fix is to make it a day ahead: chill the whole pot overnight and the fat sets into a solid disc you can lift off in one piece, which is far more effective than skimming a hot liquid. Skipping that step is the single most common reason a short rib braise tastes heavy rather than rich.