You see “London Broil” everywhere, from greasy spoon diners to high-end steakhouses and supermarket circulars. But if you ask a butcher or a chef for a straight answer on what it actually is, you’ll likely get a linguistic shell game. Is it a cut of meat? Is it a cooking method? Or is it just a convenient marketing label used to sell whatever tough roast needs to move this week?
While most modern food blogs provide a copy-pasted “standard” for what makes a London Broil, the true history of the dish reveals a massive industry bait-and-switch. To understand how a specific anatomical cut was rebranded to protect a marketing myth, we have to look at why the “standard” version you see today is a relatively recent invention.
Is London Broil a Cut of Meat?
To find the actual origin of the term, we have to look back to James Beard. In his classic Beard on Food, the legendary chef admitted that even in his time, getting a straight answer from a butcher was nearly impossible. However, Beard was clear on one thing: London Broil was originally flank steak.
Many sources will claim that it is round steak but sometimes flank steak; or that it is either; or that it is always round steak, but they seem to be putting too much trust in supermarkets, or just dishonest butchers. The prevailing line is “contrary to popular belief, London Broil is not a cut of meat, it’s a way to cook.
This is partially true, in that it means a marinated and quick-broiled or grilled meat. But only recently have cuts other than flank steak begun to be used.
To support this shift, a “standard” flavor profile has been manufactured online. If you search for a recipe today, you’ll find thousands of bloggers copy-pasting the same soy and balsamic mixture as if it were a culinary requirement. In reality, this “standard” marinade is a modern invention designed to give a cohesive identity to a dish that, anatomically speaking, has become a moving target.
🐇 Be Very Quiet, We’re Hunting for Deaf Rabbits! But you won’t find any in “Welsh Rarebit.” Yet, London Broil isn’t the first time a name was invented to add “class” to a simple dish. This is a classic example of a culinary identity crisis, much like the case of Welsh Rabbit vs. Welsh Rarebit.
In both instances, an arbitrary or humorous name created a “Nominal Fallacy”—convincing generations of diners that they were eating something far more complex than the reality (which, in the case of Welsh Rabbit, was just cheese on toast).
Why Flank Steak?
To understand why the meat industry is so eager to swap this cut for others, you have to understand the unique physical properties of the flank. The flank is a lean, fibrous cut from below the loin. Because it was tough and grainy, it was once considered a “lesser” grade of beef—making it the perfect candidate for the high-heat, marinated treatment that defines the dish.
In fact, the success of a true London Broil depends entirely on the anatomy of this cut. Unlike a ribeye or a strip, which rely on fat for tenderness, the flank relies on texture. However, it is also a tasty cut of beef.
The Great Post-War Bait-and-Switch
The Biological Bottleneck: It is a strange historic irony that a “lesser cut” like flank steak would eventually trigger an industry-wide deception. Following World War II, the backyard barbecue became a staple of American life, and London Broil was the star of the show. However, there was a biological bottleneck: while a single steer can provide dozens of T-bone or Ribeye steaks, it only provides two flank steaks. Unlike large primal cuts that can yield many smaller cuts, the flank is a discrete unit…it is what it is!
As demand skyrocketed, the math simply didn’t add up. To keep “London Broil” on the menu and in the supermarket circulars, the meat industry needed a more plentiful substitute. They turned to the Top Round, rebranded the dish as a “cooking method” rather than a specific cut, and used the standardized marinade to hide the switch.
The Myth of the “Standard” Marinade
If you browse modern food blogs today, you’ll find a near-identical “standard” for London Broil: a mixture of soy sauce, Worcestershire, and balsamic vinegar. It is presented as a culinary requirement, but it is actually a modern SEO invention.
Looking back at vintage recipes from the 1950s through the 1990s reveals total marinade anarchy. There was no standard because the dish was simply a broiled cut of beef, specifically flank steak, but evolving to include round steak.
- The 1950s Pantry Raid: Many early recipes, like those pushed by Mazola, used simple corn oil, vinegar, and dry mustard.
- The James Beard Influence: The legendary James Beard often favored ginger and orange rind infusions, treating the flank like a steak for stir-fry.
- The Acid Experiment: Some 1970s “budget” cookbooks even suggested using tomato juice and horseradish as the primary tenderizing base.
This modern standardization serves a specific purpose: it creates a cohesive “flavor identity” that masks the fact that the Top Round you’re buying today tastes nothing like the Flank Steak of the past. It effectively retro-fits the industry’s defense, that London Broil is a “cooking method”, into a tangible reality. By providing a uniform, heavy-hitting flavor profile, the internet has inadvertently helped the meat industry transform a specific anatomical cut into a vague, sauce-dependent brand.
Much like Chun King Chow Mein once defined ‘Chinese Food’ for a generation of Americans through canned standardization, the soy-balsamic marinade has defined ‘London Broil’ for the search engine era.
Round Steak Fails: The Fibers Run the Wrong Way!
However, no matter how much “flavor camouflage” you apply, a round steak is a physical imposter. This is where the industry’s “cooking method” defense completely falls apart: no amount of marinating can change the fact that the fibers run the wrong way.
On a true flank steak, the muscle fibers run horizontally along the length of the meat. When you slice across them, you create short, tender strands. On a round steak, those fibers are oriented vertically. If you slice it using the same 45-degree angle recommended for flank, you aren’t cutting across the grain, you are cutting with the grain. The result is a meal that has the texture and chewability of a car tire.
It is possible to partially overcome this if you have a thick enough piece of round steak. You can simply cut it into smaller chunks, which can then be re-oriented for slicing thinly across the grain.
If you’re using round steak to make something like Beef Stroganoff, use this same method. However, the flavor is not as good as flank steak, regardless, and it will tend to be drier.
It is true that flank can be tough, but if you cook up flank steak and carve it right, you can turn it into a meal to remember. Most every source I’ve checked, including Beard, mentioned above, James Peterson and numerous others, confirms that London Broil originally meant flank steak.
Howard Hillman, in The New Kitchen Science, confirms that this switch to round was a post-war economic move, not a culinary one. By identifying flank steak as the “original and true” London Broil, Hillman provides the final expert seal on the matter: London Broil is a specific cut of meat that the industry has spent decades trying to convince you is just a “method.”
Is London Broil Really British?
Despite the name, you won’t find London Broil in any traditional British cookbook—unless the author is pointing out that the dish is definitively not British. It is a North American invention through and through.
While the origin of the name remains murky, it likely served a specific marketing purpose in the early 20th century: giving a “lesser” cut like flank steak an air of cosmopolitan sophistication. By naming it after a world capital, the meat industry transformed a tough, inexpensive muscle into something that sounded like a high-end specialty. To this day, if you ask for a “London Broil” in London, you’ll likely be met with a confused stare or a polite correction that “broiling” is something they call “grilling.”
The Cultural Feedback Loop: To make matters even more confusing, the name has recently begun to migrate back across the Atlantic. You may even see pre-packaged, pre-marinated “London Broil” (often just Top Round) in English supermarkets. This is the ultimate success of the marketing myth: a North American invention so effectively branded that it has been re-imported to Britain, convincing a new generation of locals that they are buying a traditional staple from home. In reality, they are participating in a marketing loop that began as a way to solve a beef-supply bottleneck in the United States.
The Naming Fallacy: It Must be a Thing!
At the end of the day, the mystery of London Broil is the nominal fallacy at work. Because the name exists, we assume it must explain something unique. In reality, London Broil has never been anything more than a marinated and broiled piece of meat with a quite arbitrary name slapped on it.
When you strip away the branding, the technique is identical to making fajitas or any other quickly grilled, lean cut. The name didn’t describe a new culinary discovery; it created mist of confusion that decades of myths, marketing bait-and-switches, and copy-pasted marinades eventually rushed to fill.
If you want the “true” experience, stop looking for a “London Broil” recipe. Simply find a quality piece of flank steak, treat it with the respect any lean muscle deserves, and remember: the name on the package is the only thing that’s artificial.
More Culinary Naming Myteries
If you enjoyed uncovering the marketing myths behind London Broil, explore these other deep dives into food history and linguistic fallacies:
- Shepherd’s Pie vs. Cottage Pie: Is There Really a Difference? – Much like London Broil, the “rules” for these pies are often modern inventions designed to create distinctions where none originally existed.
- Are Fajitas Just Do-It-Yourself Tacos? – A look at how the technique of grilling lean, tough cuts (like the original London Broil) was rebranded for the modern restaurant era.
- What is Toad-in-the-Hole? – An investigation into one of the most confusingly named British staples.
- The History of the Blue Plate Special – How a simple divided plate became the ultimate symbol of American diner culture and “budget” marketing.