The regional table / Arizona
Sonoran Carne Seca
Published October 20, 2026 · Arizona
The United States Department of Agriculture explained how to make this in 1924, in one sentence about arid climates, and then spent the next century making it illegal to sell.
The technique has a federal instruction manual and it is out of copyright. Farmers' Bulletin 1415, "Beef on the Farm: Slaughtering, Cutting, Curing", published in 1924, gets to the cut first: "The round is commonly used for dried beef, the inside of the thigh being considered the choicest piece, as it is slightly more tender", and it wants that round "cut lengthwise of the grain of the meat in preparing for dried beef, so that the muscle fibers may be cut crosswise when the dried beef is sliced for table use." Then comes the sentence that explains why this is a Sonoran dish and not a Michigan one: "The drier the climate, in general, the more easily can meats be dried. In arid regions good dried meat can be made by exposing it fresh (if protected from flies) to the air." That is the whole of carne seca stated as federal agricultural advice — fresh beef, open air, a screen against flies — and it is the method still visible in Tucson, where the best-known version of this dish is dried in a cage on a restaurant roof. The modern federal position on the same operation done for sale is a good deal less relaxed: 9 CFR 318.17 requires of cooked beef products "A 6.5-log 10 reduction of Salmonella" and states flatly that "The lethality process must include a cooking step". Both of those are in the method below, which is why the drying here happens in an oven.
What I cannot give you is a date or a kitchen, and the search for one turned up something worth reporting instead. In Georgia's historic newspapers the phrase "carne seca" appears on exactly two pages, both of them in Mexico Lindo, a Spanish-language paper published in Gainesville, Georgia, in January 2005 and January 2006. Nebraska's collection has it on none at all. Machaca does a little better in Georgia with 17 pages, the earliest from 1992. But search the same archives for the old English word and the picture inverts completely: "jerked beef" returns 494 Georgia pages running back to 5 September 1799, and I read through the early ones expecting Mexico and found the River Plate and the Caribbean instead — a Danish brig taken as a prize off Jamaica with a cargo of jerked beef in 1799; a correspondent in 1819 reporting that the exports of Artigas's country "consists of jerked beef, hides and tallow" and that he "has prohibited the curing of the former"; a Savannah produce column of 4 November 1833 quoting "Jerked Beef, American, 13 a 14 rs." among the coffee and the lard. The Florida Digital Newspaper Library tells the same story in Portuguese, where its earliest printings of "carne seca" are cargo notices in the Diario de Pernambuco from 1831 onward, one of them an auction of carne seca aboard a Brazilian brig. So dried beef is documented as a staple export of the American cattle frontiers for two centuries, in three languages, and the specific Sonoran thing — dried beef pounded to floss and fried with chile, onion and tomato — is not in any of it. Nor does it have a federal name: the Food Safety and Inspection Service labeling book that defines burrito, chimichanga, enchilada, Sonora-style enchilada, tostada with meat, air dried beef and jerky contains no carne seca and no machaca anywhere in it. Nobody cooks for this site, no public-domain recipe for this dish exists, and the quantities below were worked out for this page from the 1924 bulletin and the federal composition data.
Why this version works
Dry it well past what the law lets anyone sell you. The labeling book's entry for air dried beef caps the moisture-protein ratio at 2.04 to 1, and the commercial product measured by USDA sits at 53.8 grams of water to 31.1 of protein — a ratio of about 1.73 to 1, which is to say that shop-bought dried beef is still more than half water, and carries 2,790 milligrams of sodium per hundred grams to make up for it. That is a wet, very salty product built to survive a supply chain. Carne seca is the opposite trade: dried hard enough to snap rather than bend, and salted lightly, because it is going into a pan within the week rather than onto a shelf for a year. If a strip flexes without cracking, it is not done.
The round is the cut, and the fat figure is the reason. USDA puts lean top round at 2.41 grams of fat and 73.3 grams of water per hundred — the leanest common beef in the case, and almost three-quarters water by weight. Both numbers matter, in opposite directions. Water is what you are trying to remove, and there is a lot of it. Fat is what you cannot remove, because fat does not dry; it oxidises, and a marbled cut dried for ten hours comes out tasting of old nuts within a week. The 1924 bulletin names the round for this job and nothing else, and it is right. Trim every scrap of visible fat and silverskin before you start, not after.
The frying is a rehydration, and that is why the pan needs liquid. Dried beef shreds have almost no water left in them, so putting them in hot fat alone makes them harder, not softer. The onion goes in first and sweats, the tomato goes in and breaks down, and the shreds are stirred into that wet mixture off the fiercest heat and given four or five minutes to drink it back up. You are not browning meat here — it is already cooked, already dried, and already brown. If the pan looks dry at any point, a spoonful of water or stock does more for the dish than a spoonful of oil.
The grain is cut one way for slicing and the other way for shredding. This is the single place where carne seca parts company with the bulletin it otherwise follows. Farmers' Bulletin 1415 wants the round cut lengthwise of the grain "so that the muscle fibers may be cut crosswise when the dried beef is sliced for table use" — that is a chipped-beef instruction, for a dried piece shaved thin across the fibre at the table. Carne seca is never sliced. It is pounded and pulled apart along the fibre, which is why the strips go into the cure cut with the grain and come out of the oven as a bundle of parallel threads waiting to be broken. Cut across the grain instead and the dried strip crumbles to powder under the pestle rather than separating into floss.
Ingredient notes
The beef: a pound and a half of lean top round in one piece, trimmed hard and cut with the grain into strips about a quarter of an inch thick, an inch wide and as long as the piece allows. It is easier to cut thin if you firm it in the freezer for half an hour first. A pound and a half of raw round dries down to roughly six ounces, which is four generous servings once it is fried with vegetables — dried beef is not an ingredient you scale up by eye, so weigh it going in.
The cure: the juice of two limes, four cloves of garlic crushed to a paste, two teaspoons of fine salt and a teaspoon of coarse black pepper, rubbed over the strips and left overnight in the fridge. The salt is there for flavour and for drawing water to the surface, not for preservation, which is the oven's job here; keep it modest, because the drying concentrates everything. Lime and garlic are the Sonoran seasoning and they survive the drying better than anything else you could put on. No sugar, no soy, no liquid smoke.
What it is eaten with: flour tortillas, warm, and lime. Carne seca is almost never a plate on its own in Sonora or in Tucson — it is the filling for a taco or a burro, or it sits beside eggs at breakfast, or beside beans and rice at dinner. Make the tortillas the big thin wheat ones if you can get them. Keep a bowl of beans nearby, because the dish is intense, salty and dry-edged by design, and beans are what balances it.
The chile and the tomato: half a cup of roasted mild green chile, peeled and chopped, and two ripe tomatoes chopped small, or a drained tin if the fresh ones are pale. These two are the liquid in the dish and the only liquid it gets, so do not drain the tomato of its juice. If you want more heat, a sliced serrano goes in with the onion; if you want it smokier, a dried chile broken into the pan and fished out before serving.
Step by step
- Trim and cut the beef with the grain. Firm the round in the freezer for 30 minutes, then trim away every piece of fat, sinew and silverskin — all of it, not most of it. Cut the meat with the grain into strips a quarter of an inch thick and about an inch wide. Keeping the cut parallel to the fibre is what lets the dried strips come apart into threads later.
- Cure overnight. Mix the lime juice, crushed garlic, salt and pepper, rub it through the strips with your hands until every surface is coated, and leave them covered in the fridge for 8 to 12 hours. Turn them once if you remember. They will come out darker and slightly firm, with a little liquid in the bowl; lift them out and let that drain away rather than carrying it into the oven.
- Heat the strips through before you dry them. Lay the strips in a single layer on a rack over a tray and put them into a 300-degree oven until a thermometer in the thickest strip reads 160 °F, which takes about 10 to 15 minutes. This step is not traditional and it is not optional: the federal rule for commercial dried beef, 9 CFR 318.17, requires that "The lethality process must include a cooking step", and a warm oven slowly drying raw meat for hours is the one situation in which that matters most.
- Dry at the lowest heat the oven will hold. Turn the oven down to its lowest setting, ideally about 165 °F, and prop the door open a couple of inches with a wooden spoon so the moisture can leave. Dry the strips on their rack for 6 to 10 hours, turning them once halfway. They are done when a strip snaps cleanly rather than bending — if it folds, it needs longer, and an hour more will not hurt it. Let them cool completely before you touch them again.
- Pound and pull it into shreds. Work in batches. Put a handful of strips in a mortar, or between two sheets of greaseproof paper under a rolling pin, and bruise them until the bundle loosens, then pull the fibres apart with your fingers into threads as fine as you can manage. This is the step the dish is named for in its other name, machaca, and it takes about ten minutes for the whole batch. Aim for floss, not flakes; anything still in a slab will stay chewy in the pan.
- Fry it soft in onion and tomato. Heat a tablespoon of oil in a wide pan over medium heat and cook the sliced onion until it is soft and just colouring, 6 to 8 minutes. Add the green chile and the chopped tomato with all its juice and cook until the tomato collapses, about 5 minutes. Turn the heat down, stir in the shredded beef, and cook 4 to 5 minutes more, adding a spoonful of water whenever the pan looks dry, until the shreds have softened and taken up the sauce. Taste before you add salt — it very likely needs none. Lime over the top at the table.
Most failures happen in the oven and show up in the mortar. Strips that bend instead of snapping were not dried long enough, and the fix is simply more time at low heat; strips that have gone brittle and powdery were dried too hot, and there is nothing to do but use them, because powder still makes a decent pan of carne seca even if it will never make floss. If the dried beef smells faintly of paint or old nuts, the cut was not trimmed hard enough and the fat has oxidised — that batch is finished, and the lesson is the trimming. In the pan, tough shreds mean too little liquid or too much heat, so turn it down and add water a spoonful at a time; the shreds will soften within a couple of minutes. And if the finished dish is simply too salty, which is the commonest complaint, more tomato and a squeeze of lime will carry it, and the cure gets a teaspoon less salt next time.
Storage and make-ahead
The dried beef is the thing worth keeping and it keeps very well: cooled completely and sealed in a jar, the strips or the shreds hold a month in a cupboard and six months in the freezer, and they lose nothing by it. Keep them whole as strips rather than shredded if you are storing them long, because floss takes up moisture from the air much faster than a solid strip does. If the jar fogs on the inside, the beef was not dry enough when it went in — back into the low oven for an hour.
The finished fried dish keeps 3 days refrigerated and reheats better than most leftovers, because the shreds go on absorbing liquid; add a spoonful of water and warm it in a pan rather than a microwave. It freezes for 2 months. This is a good thing to cook on a Sunday in order to eat it in tortillas on a Tuesday, which is roughly the logic the dish was invented under in the first place.
What to serve with it
Eggs, is the honest first answer — carne seca con huevos is breakfast across Sonora and southern Arizona, the shreds stirred through soft scrambled eggs and rolled into a flour tortilla. At dinner, pinto beans, plain rice, a wedge of lime and a thin red salsa, with more tortillas than you think you need. Nothing creamy and nothing cheesy: the dish is already concentrated and a dairy sauce flattens it.
To drink, a cold lager or an agua fresca of melon, and coffee with it at breakfast. If you want to make an evening of it, serve a cheese crisp first and keep the carne seca as the thing people build their own tacos from at the table, with bowls of onion, coriander and lime pushed into the middle.
From the recipe box / Arizona
Sonoran Carne Seca
Top round cured with lime, garlic and salt, dried until it snaps, then pounded to shreds and fried with onion, green chile and tomato — the Sonoran ranch way of keeping beef in a country with no winter, rebuilt for an oven because the open-air method is no longer one I can tell you to use.
- Prep
- 30 min
- Cook
- 8 hr 30 min
- Total
- 9 hr
- Serves
- 4
- Calories
- 215 per serving
Instructions
- Firm the round in the freezer 30 minutes, trim off all fat and silverskin, and cut it with the grain into strips a quarter-inch thick.
- Rub the strips with the lime juice, garlic, salt and pepper and cure them covered in the fridge 8 to 12 hours; drain before cooking.
- Lay the strips on a rack over a tray and heat in a 300 °F oven to an internal 160 °F, about 10 to 15 minutes.
- Drop the oven to its lowest setting, about 165 °F, prop the door open a couple of inches, and dry 6 to 10 hours until a strip snaps rather than bends; cool completely.
- Bruise the strips in a mortar or under a rolling pin and pull the fibres apart into fine shreds.
- Soften the onion in oil 6 to 8 minutes, add the chile and tomato and cook 5 minutes until collapsed, then stir in the shreds and cook 4 to 5 minutes, adding water when the pan dries; serve with lime and warm tortillas.
Nutrition
| Fat | 9 g (2 g saturated) |
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| Sodium | 620 mg |
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| Protein | 26 g |
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| Serving | a quarter of the pan, without tortillas |
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| Calories | 215 |
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| Cholesterol | 70 mg |
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| Carbohydrates | 8 g (4 g sugar, 2 g fiber) |
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Nutrition is an estimate calculated from the listed ingredients and is provided as
a courtesy, not as dietary advice.
Questions readers ask
Is carne seca the same as machaca, or as jerky?
Carne seca and machaca are the same meat at two stages: seca is the dried strip, machacar is to pound, and machaca is what you have after pounding — in practice both words get used for the finished pan of fried shreds, and in some households for each other. Jerky is a different object with a federal definition: the labeling book requires a species in the name, allows it "cured or uncured, dried… air or oven dried", and permits chunked-and-formed and ground-and-formed versions, which carne seca by definition cannot be. The nearer federal cousin is "air dried beef", capped at a moisture-protein ratio of 2.04 to 1 — wetter than anything you would want to pound.
What cut should I use if I cannot get top round?
Anything very lean and solid: bottom round, eye of round, or a lean flank cut with the grain. The decision is fat, not tenderness — toughness does not matter in a piece you are going to pound to threads, and fat matters enormously, because it does not dry and will turn rancid in the jar. USDA puts lean top round at 2.41 grams of fat per hundred, which is about as low as beef goes; stay near that. Avoid chuck, brisket and anything described as marbled, and if the only lean piece in the shop has a fat seam running through it, cut the seam out and use the two halves.
How old is the dish, and where does it come from?
The technique is old and continental, and the dish is undated. Dried beef is in American and Brazilian print as a trade commodity for two hundred years: "jerked beef" appears in Georgia newspapers from September 1799, almost always as a cargo out of the River Plate or the Caribbean, and "carne seca" appears in the Florida collection's Portuguese papers from 1831 as a Brazilian export. The Sonoran version with lime and garlic, pounded to floss and fried with chile and tomato, I could not date at all: two Georgia pages, both from a Spanish-language paper in 2005 and 2006, nothing in Nebraska, and no entry anywhere in the federal labeling book. Arizona's own archive is reachable in a browser but cannot be searched by exact phrase. So the cattle, the climate and the method are documented; the plate is not.
Can I dry it in the sun the way it is traditionally done?
I am not going to tell you to, and the reason is a change in the record rather than a change in the sun. The 1924 federal bulletin says plainly that "In arid regions good dried meat can be made by exposing it fresh (if protected from flies) to the air", and that is what Sonoran ranches did and what a famous Tucson restaurant still does in a screened cage on its roof. But the modern rule for anyone producing dried beef for sale, 9 CFR 318.17, demands a 6.5-log reduction of Salmonella and says "The lethality process must include a cooking step", and the reason that rule exists is precisely slow drying at ambient temperatures. If you are in a genuinely dry climate with a fly-proof cage and you know what you are doing, the old method works. For everyone else the ten minutes at 300 degrees in step three buys the same safety and costs nothing in flavour.