Is London Broil Steak? | Cut Names And Cooking Rules

London broil is a cooking method for lean beef steaks, though many supermarkets sell a “London broil” steak cut from flank, round, or similar muscles.

Walk past the meat case and you might see a big slab of beef labeled “London Broil” sitting beside ribeye and strip. That label raises a fair question: is london broil steak, or is it something else entirely? The answer shapes how you shop, how you cook it, and how tender that plate ends up.

The short version is that London broil started as a cooking style, not a specific steak. Over time, the name slipped onto the package, so “London broil” now often means a marinated, broiled or grilled steak cut from lean, often tougher muscles. Once you see it that way, the confusing label starts to make sense.

Is London Broil Steak? Short Answer And Details

If you ask a butcher, chef, or food writer “is london broil steak?” the honest reply sits somewhere between yes and no. London broil is first a method: marinate a lean slab of beef, cook it quickly over high heat, then slice it thin across the grain. That approach turns a firm, budget cut into something tender enough for steak night.

At the same time, supermarkets and some butchers use “London broil” as a product name on the label. The piece inside the wrapper might be flank steak, top round, sirloin tip, or another large, lean cut. So in everyday speech, many shoppers call that piece “a London broil steak” even though the term originally pointed to how you cook it rather than which muscle it comes from.

Common Cuts Sold As London Broil

To clear up the label, it helps to see which beef cuts most often carry the London broil name and how they behave in the pan or on the grill.

Cut Commonly Labeled “London Broil” Typical Traits Good Cooking Approaches
Flank steak Thin, wide, long fibers, very lean Marinate, high heat broil or grill, slice thin across grain
Top round steak or roast Thick, very lean, fine grain, larger roast shapes Marinate, grill or broil, sous vide, or roast then sear
Sirloin tip (knuckle) Lean, slightly more marbling than round Marinate, grill or pan sear, finish to medium rare
Top sirloin steak Moderate marbling, strong beef flavor Grill, pan sear, or broil with shorter marinade
Shoulder or chuck steak trimmed lean Richer flavor, some connective tissue Marinate and grill to medium, or braise until tender
Bottom round steak Very lean, coarse grain, can be dry if overcooked Marinate, quick broil, slice very thin, or use in slow cooking
Misc. “beef for London broil” Catch-all for lean, thick steaks from sirloin or round Follow classic London broil method with close doneness control

Because the cut varies, the smartest first step with any package marked London broil is to read the fine print on the label. Some producers, guided by rules in the FSIS labeling policy book for beef, list the underlying muscle, such as “Beef Flank Steak for London Broil.” That extra phrase tells you exactly what sits in the tray and how lean it is.

London Broil Steak Meaning In Stores And Recipes

Home cooks often treat that labeled piece of meat as a London broil steak, while recipe writers talk about London broil as a dish. Both habits grew from the same base idea: a single, large piece of lean beef cooked hot and fast, then sliced thin across the grain.

Food references such as the Spruce Eats explanation of London broil describe it as a method for cooking lean, somewhat tough steaks like flank or top round. The meat gets an acidic or enzyme-rich marinade, spends time soaking up flavor, then hits a broiler or grill. That pattern turns an inexpensive cut into something that fits the steak category on the plate.

Why The Name London Broil Causes Confusion

The phrase sounds like it should describe a single cut, the way “ribeye” or “strip steak” does. In real life, one store might use flank, another top round or sirloin tip, and a third might switch cuts when prices change, so the same label can hide very different steaks.

How To Tell Which Cut Your London Broil Steak Is

If the label keeps things vague, you can still sort out which “family” your London broil steak belongs to by looking at shape, thickness, and grain. A quick visual check before you cook helps you choose time, temperature, and slicing style that suits that specific piece.

Check Shape, Thickness, And Grain

Lay the meat on a board and study the outline. Flank steak runs wide and thin with a long, clearly visible grain. Top round or sirloin tip often feels thicker, more compact, and closer to an oval roast. Bottom round tends to be lean, firm, and somewhat flat along one side.

Next, notice the direction of the muscle fibers. London broil style dishes rely on slicing across that grain to shorten the fibers in each bite. If you plan ahead and spot the grain before cooking, it becomes much easier to cut neat slices later, even when the surface has browned.

Read The Fine Print And Ask Questions

Sometimes the barcode label includes a smaller line that names the cut, even if the main print just says “London Broil.” Search for words like “flank,” “round,” or “sirloin.” Those hints tell you a lot about how lean the meat is and how much chew to expect.

If the label gives no extra clues, the fastest route to clarity is a short chat with the meat counter staff. Ask what cut their London broil usually comes from, how they like to cook it, and what doneness they aim for. That quick talk can save you from overcooking a very lean steak.

London Broil Steak Or Cooking Method?

So where does that leave the original question, is london broil steak? In practice, London broil now fills two roles at once. Cooks use the phrase for a marinated, broiled or grilled dish made from a lean steak, and shoppers use the same words for the raw piece of meat sold under that sign.

If you care about tradition, London broil is a recipe and technique that usually starts with flank steak. If you care about the supermarket label, London broil steak is any large, lean steak the store decides to use for that program. Both uses are common, and both can lead to a satisfying plate when handled well.

Good Ways To Cook A London Broil Steak

Once you bring a London broil steak home, the plan stays fairly steady no matter which lean cut you have. You want flavor from a marinade, high heat for browning, and careful slicing across the grain. Small tweaks tailor the process to flank, round, or sirloin, but the backbone stays the same.

Build A Marinade That Fits Lean Beef

Lean cuts benefit from a flavor-packed marinade. Use oil, salt, pepper, garlic, and an acidic splash like vinegar or citrus, plus soy sauce or Worcestershire if you like. Coat the steak and chill it for two to four hours so the surface seasons well without turning mushy.

Use High Heat, But Watch The Center

London broil recipes usually rely on strong, direct heat. For a broiler, set a rack a few inches below the element, preheat well, then lay the steak on a hot pan. For a grill, aim for a hot side for searing and a slightly cooler zone to finish if the piece is thick.

The lean nature of these cuts means they dry out when cooked far past medium. Many cooks aim for medium rare or medium at most. A thermometer helps here. Pull the steak when the center is just below your target, since carryover heat adds a few degrees while the meat rests.

Doneness Level Target Internal Temp (°F) Typical Texture For London Broil Style Steaks
Rare 120–125 Very soft center, some chew, juicy but not for everyone
Medium rare 130–135 Pink center, good balance of tenderness and moisture
Medium 140–145 Slightly firmer bite, still moist when sliced thin
Medium well 150–155 Noticeably firm, needs very thin slices and sauce
Well done 160+ Dry and tough with these lean cuts, best avoided

Rest And Slice Across The Grain

After cooking, rest the steak on a board for at least ten minutes, then slice thin across the grain. Thin slices shorten the muscle fibers in each bite, so even a sturdy cut feels much more tender.

Where London Broil Fits In Your Steak Rotation

Ribeye and strip often steal the spotlight, but London broil style steaks fill a different niche at the table. They offer bold beef flavor, lean profiles, and generous portions at a friendly price. When you pass that label in the store now, you know what questions to ask, which cuts it might hide, and how to cook and slice the steak once you bring it home.

Mo Maruf

Mo Maruf

Founder

I am a dedicated home cook and appliance enthusiast. I spend hours in my kitchen testing real-world storage methods, reheating techniques, and kitchen gear performance. My goal is to provide you with safe, tested advice to help you run a more efficient kitchen.