Costillas
Costillas is the Spanish word for ribs, and in Mexican and other Latin American kitchens it almost always refers to pork ribs (costillas de puerco), cut crosswise through the bone into short 2-3 inch segments rather than left in a full slab like American-style barbecue ribs. This cut is used for braises and stews such as costillas en salsa verde, costillas adobadas, and caldo de costilla, where the meat needs to simmer long enough to fall off the bone into a sauce.
Varieties
Costillas de puerco (pork ribs) is the default meaning of the word in most Mexican recipes. Costillas de res refers specifically to beef short ribs and is used in heartier, longer-braised dishes. Costillas de cordero (lamb ribs) appear less often but follow the same crosswise-cut style.
Buying tips
Look for costillas with a decent amount of meat between the bones rather than mostly fat and bone; ribs cut too thin dry out during long braises. Many Latin grocery stores and carnicerías sell costillas already cut into short segments specifically for stewing, which saves the step of cutting down a full slab at home.
Substitutes
Pork spare ribs, whole slab cut down — 1:1 by weight
The closest match; ask the butcher to cut a rack of spare ribs crosswise into short segments instead of leaving it as a slab.
Country-style pork ribs — 1:1 by weight
Meatier and less bony, cut from the shoulder end of the loin. Cooks slightly faster and yields more usable meat per pound.
Pork shoulder (bone-in), cut into 2-inch chunks — 1:1 by weight
No rib bones for texture and presentation, but nearly identical flavor and fat content in braises and salsa dishes.
Beef short ribs (costillas de res) — 1:1 by weight
A legitimate swap for beef-based versions of the same dishes, but needs a longer braise, closer to 2.5-3 hours, to soften.
Storage
Keep raw costillas refrigerated and use within 2 days, or freeze tightly wrapped for up to 4 months. Cooked costillas in sauce keep refrigerated for 3-4 days and freeze well for up to 3 months since the sauce protects the meat from freezer burn.
How to use
Braise costillas low and slow in salsa verde, salsa roja, or adobo for 60-90 minutes until the meat pulls easily from the bone. They also work simmered in broth for caldo de costilla, or seared first and finished in the oven for a firmer, less falling-apart texture. Trim excess surface fat before browning since pork ribs render a lot of it during a long simmer.
What it pairs with
Pairs naturally with tomatillo or roasted tomato salsas, guajillo and ancho chiles, cumin, and Mexican oregano. Served with rice, warm corn tortillas, and a squeeze of lime to cut the richness.
Nutrition
Pork costillas are a fattier cut, running higher in saturated fat than loin or tenderloin, but they're a solid source of protein, B vitamins, and zinc. Skimming rendered fat off the surface of a finished braise cuts a meaningful amount of the fat content.
FAQ
What's the difference between costillas and American-style spare ribs?
The cut of meat is the same, but costillas are typically chopped crosswise through the bone into short segments before cooking, while American spare ribs are usually kept whole as a slab for smoking or grilling.
Do costillas need to be browned before braising?
Browning isn't required but it deepens the flavor of the final sauce significantly. Sear the pieces in a hot pan for 2-3 minutes per side before adding them to the salsa or broth.
How do I know when costillas are done?
The meat should pull away from the bone with light pressure from a fork. This usually takes 60-90 minutes at a low simmer, depending on how meaty the cut is.
Can I make costillas in a pressure cooker or Instant Pot?
Yes, and it cuts the cooking time to about 25-30 minutes at high pressure with a natural release, producing nearly the same fall-off-the-bone texture as a stovetop braise.
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