Carne asada means “grilled meat”. It names a method, not a cut — which is why the endless argument about whether it is skirt steak or flank steak has no winner. It is usually one of those two, marinated, grilled hot and fast, then sliced thin across the grain.
That last step matters more than the cut does. Both cuts are long-fibred and will eat like rope if sliced the wrong way.
Skirt or flank: the actual difference
| Skirt steak | Flank steak | |
|---|---|---|
| From | The diaphragm area, under the ribs | The lower abdominal wall |
| Shape | Long, thin, narrow | Wider, thicker, flatter |
| Fat | More marbling | Leaner |
| Fibres | Loose and open | Tighter |
| Marinade | Takes it fast — an hour or two is plenty | Wants longer |
| Best for | Very hot, very quick grilling | Slightly longer cooking, then thin slicing |
Texas A&M University’s Department of Animal Science, writing on changes in the retail beef market, places both among the traditional minor cuts — the brisket, plate, flank and foreshank — rather than among the premium primals. That is the useful context: carne asada is built on hard-working, well-flavoured muscle that needs help, not on tender steak.
The help is the marinade and the slicing. Skip either and you get a chewy result from a good cut.
The marinade
There is no fixed recipe, but the components are consistent: citrus, usually lime and often orange; garlic; salt; and something with a little heat or smoke. Some cooks add beer, some add soy sauce, and the arguments about it are the same arguments people have about barbecue rubs.
The one technical caution is time. Citrus acid works on the surface of the meat, and leaving thin skirt steak in a strongly acidic marinade overnight will turn its outer layer chalky rather than tender. For a thin cut, an hour or two does the job.
Why it must be sliced against the grain
Look at a piece of raw skirt or flank and you can see the muscle fibres running in one direction, like the grain in wood. Slicing along them leaves long fibres intact and your teeth have to do the shortening. Slicing across them cuts every fibre into short pieces first.
- Rest the meat off the heat for a few minutes before cutting.
- Find the grain — the direction the fibres run.
- Turn the meat so your knife crosses that direction at a right angle.
- Slice thinly. For tacos, the slices are then chopped across again into small pieces.
In a taqueria this happens on the board in front of you, which is why carne asada tacos arrive as chopped pieces rather than as strips.
It is also an event, not just a dish
In northern Mexico and across the border states, una carne asada means the gathering as much as the food — the equivalent of saying you are having a barbecue. Someone brings a grill, someone brings the meat, it is cooked in batches and eaten in tortillas standing around the fire while the next batch goes on.
That shapes the food. Carne asada is cooked and served continuously rather than plated all at once, which is why it is chopped small and handed out in tortillas rather than served as steak. Sonora in particular is associated with the style, and with flour tortillas alongside the corn — one of the few parts of Mexico where wheat is a genuine default rather than a Tex-Mex import. Our tortilla comparison covers that split.
Carne asada, bistek, fajitas: telling them apart
Three terms that overlap and are not the same thing.
- Carne asada — grilled over fire, usually marinated, then sliced or chopped. The char is the point.
- Bistek — thin beef cooked on a flat griddle rather than over flame. Plainer, no char. We cover it in our bistek guide, which explains why the two get confused.
- Fajitas — a Tex-Mex dish using the same cuts, served with peppers and onions and assembled at the table. See Tex-Mex versus Mexican food.
If a menu offers both carne asada and bistek, it is telling you it has a grill and a griddle and uses them differently. That is a good sign.
A note on Doc’s
Doc’s board listed bistek, not carne asada — beef cooked on the flat top rather than over flame. Our guide to bistek covers what that meant in practice, and how to read a Mexican menu explains why the distinction is worth noticing on any board.
Doc’s Taco Shop did not serve this. The shop ran three meats across its whole board — pollo, al pastor and bistek — and closed permanently on 19 July 2025. This article is here because our own guides kept mentioning the dish without ever explaining it. You can read the full menu as Doc’s published it or read how the shop came about.
Frequently asked questions
What cut of meat is carne asada?
Usually skirt steak or flank steak, though the term does not actually specify a cut — it describes grilled beef. Flap meat is also common.
What does carne asada mean?
Grilled meat, literally. ‘Asada’ means grilled or roasted, the same word that appears in pollo asado.
Is carne asada the same as bistek?
No. Carne asada is grilled over fire and usually marinated; bistek is thin beef cooked on a flat griddle, generally plainer and without the char.
Why is my carne asada tough?
Almost always the slicing. Skirt and flank are long-fibred cuts and must be sliced thinly across the grain. Overcooking and skipping the rest also contribute.
How long should carne asada marinate?
For thin skirt steak, one to two hours is enough. Long acidic marinades can make the surface chalky rather than more tender.
The short version
Carne asada is a method: marinated beef, grilled hard, sliced thin across the grain. Skirt and flank both work and the argument about which is correct is beside the point. Get the slicing right and the cut matters much less than anyone claims.