London Broil

London broil is a classic beef dish that starts with a tough cut — usually top round or flank steak — transformed through marinating and high-heat broiling. This guide covers everything from selecting the right beef cut to slicing it perfectly against the grain. You will learn proven techniques for tender, flavorful london broil every single time.

London broil has been a staple in American kitchens for decades. It is one of those dishes that feels both simple and impressive at the same time. Whether you are a beginner cook or a seasoned home chef, mastering london broil opens up a world of delicious possibilities.

The beauty of this dish lies in its versatility. You can marinate it overnight, sear it in the oven, or even adapt the technique for your stovetop. The result is a hearty, flavorful beef meal that works for weeknight dinners and holiday gatherings alike.

In this guide, we walk you through everything you need to know. From picking the right beef cut at the store to slicing it like a pro, you will find all the details here. Let us dive in.

Key Takeaways

• Choose the right cut: Top round, flank steak, or sirloin tip work best for london broil.
• Marinate for tenderness: A good marinade breaks down tough fibers and adds deep flavor.
• Broil at high heat: High-temperature cooking creates a beautiful sear while keeping the inside juicy.
• Always rest the meat: Letting london broil rest redistributes juices for a more flavorful bite.
• Slice against the grain: This single step makes the biggest difference in tenderness.
• Use a meat thermometer: Pulling the beef at the right internal temp ensures perfect doneness every time.

What Is London Broil?

London broil is not a specific cut of meat. It is a cooking method. The term refers to a beef roast — typically top round, flank steak, or sirloin tip — that is marinated and then cooked under high heat, usually by broiling.

Despite its name, london broil did not originate in London, England. The dish became popular in the United States during the 1930s and 1940s. Cooks discovered that a tough cut of beef could be transformed into something tender and delicious through marinating and high-heat cooking.

The key to great london broil is understanding the process. You start with a lean, relatively tough cut. You marinate it to break down the muscle fibers. Then you cook it quickly at very high heat. Finally, you slice it thin against the grain. Each step matters.

Many people confuse london broil with a specific steak cut. That is a common mistake. Think of it as a technique, not a cut. Once you understand that, the whole process becomes much easier to grasp.

Choosing the Right Beef Cut for London Broil

Selecting the right piece of beef is the foundation of a great london broil. Not all cuts work equally well, so knowing what to look for makes a big difference.

Top Round Steak

Top round is the most traditional choice for london broil. It comes from the rear leg of the cow, which means it gets a lot of exercise. That makes it lean but also tough. The good news is that marinating and broiling transforms it into a tender, flavorful steak.

Look for a top round roast or steak that is about 1 to 1.5 inches thick. Avoid pieces that have excessive fat or gristle. A uniform shape ensures even cooking.

Flank Steak

Flank steak is another excellent option. It is long, flat, and has a bold beefy flavor. Flank steak is slightly more tender than top round, which makes it a forgiving choice for beginners.

This cut works beautifully for london broil because it absorbs marinades well. The long, flat shape also makes it easy to slice into strips after cooking.

Sirloin Tip

Sirloin tip is a lesser-known but fantastic option. It sits between the sirloin and the round, giving it a bit more flavor and tenderness than pure round cuts. If you can find it at your grocery store, give it a try.

What to Avoid

Not every beef cut suits london broil. Avoid fatty cuts like ribeye or strip steak. They are already tender and do not need the broiling technique. The whole point of london broil is to take a tough, lean cut and make it delicious.

Cut	Tenderness	Flavor	Best For
Top Round	Tough (needs marinating)	Mild, classic beef	Traditional london broil
Flank Steak	Moderate	Bold, beefy	Sliced steak sandwiches
Sirloin Tip	Moderate-tender	Rich, full-bodied	Premium london broil

Marinating Your London Broil

Marinating is the secret weapon behind every great london broil. A good marinade does two things. It adds flavor, and it tenderizes the meat by breaking down tough muscle fibers.

Why Marinating Matters

Lean beef cuts like top round have very little fat. Fat is what keeps meat juicy during cooking. Without it, the meat can dry out quickly. A marinade compensates for this by introducing moisture and flavor directly into the meat.

The acid in marinades — from vinegar, citrus juice, or wine — helps break down the connective tissue. This is what makes a tough cut tender after cooking. The longer you marinate, the more tender the result.

Basic London Broil Marinade Recipe

Here is a simple marinade that works every time:

• 1/4 cup soy sauce (for salt and umami)
• 2 tablespoons olive oil (for moisture)
• 2 cloves garlic, minced (for depth of flavor)
• 1 tablespoon Worcestershire sauce (for tang)
• 1 teaspoon black pepper (for heat)
• 1 tablespoon balsamic vinegar (for tenderizing acid)

Mix all the ingredients in a bowl or zip-lock bag. Place the beef in the marinade and refrigerate for at least 2 hours. For best results, marinate overnight.

Marinating Tips

• Always marinate in the refrigerator, never on the counter.
• Use a zip-lock bag to maximize contact with the marinade.
• Do not reuse leftover marinade that touched raw meat.
• Pat the beef dry before broiling for a better sear.

How to Cook London Broil in the Oven

Cooking london broil in the oven is straightforward, but a few details make all the difference. Follow these steps for perfect results every time.

Step-by-Step Oven Broiling

First, preheat your oven broiler on high. Position the oven rack about 4 to 6 inches below the heating element. You want the beef close enough to get a good sear.

Remove the beef from the marinade and pat it dry with paper towels. This step is crucial. Moisture on the surface creates steam instead of a sear. Dry meat browns beautifully.

Place the beef on a broiler pan or a wire rack set over a baking sheet. Season lightly with salt if your marinade was salty enough.

Broil for about 5 to 7 minutes per side for medium-rare. The exact time depends on the thickness of the cut and your oven. Use a meat thermometer to check the internal temperature.

For medium-rare, pull the beef at 130°F. For medium, wait until 140°F. For medium-well, 150°F. Remember that the temperature will rise a few degrees as the meat rests.

Resting the Meat

Once the london broil is done, take it out of the oven and let it rest for 5 to 10 minutes. This step is non-negotiable. Resting allows the juices to redistribute throughout the meat. If you cut too soon, the juices run out and the steak dries out.

Place the beef on a cutting board and tent it loosely with aluminum foil. This keeps it warm while it rests.

Slicing Against the Grain

Slicing against the grain is the single most important step for tender london broil. The grain refers to the direction of the muscle fibers in the meat. Cutting perpendicular to those fibers shortens them, making each bite much easier to chew.

Look at the raw beef before cooking. Identify which direction the fibers run. After cooking and resting, slice perpendicular to those fibers. Cut thin slices, about 1/4 inch thick, for the best results.

If you slice with the grain, even perfectly cooked london broil will be chewy and tough. This one mistake ruins an otherwise excellent dish.

Common Mistakes to Avoid

Even experienced cooks make mistakes with london broil. Here are the most common errors and how to avoid them.

• Skipping the marinade. A lean cut without a marinade will be dry and tough. Always marinate for at least a couple of hours.
• Not patting the meat dry. Surface moisture prevents browning. Dry the beef thoroughly before it goes under the broiler.
• Cooking too long. London broil is a quick-cooking method. Overcooking turns a lean cut into a leathery disaster. Watch the temperature carefully.
• Cutting with the grain. This is the number one mistake. Always identify the grain and slice across it.
• Cutting too thick. Thick slices are hard to chew. Cut thin, against the grain, for a tender eating experience.
• Not letting the meat rest. Cutting into hot beef immediately releases all the juices. Patience pays off with a juicier steak.

Serving Suggestions for London Broil

London broil is incredibly versatile when it comes to serving. Here are some ideas to make the most of your cooked beef.

Classic Plated Dinner

Slice the london broil against the grain and serve it alongside roasted potatoes and steamed vegetables. A simple pan sauce made from the drippings adds a restaurant-quality touch.

Steak Sandwiches

London broil is perfect for sandwiches. Slice the beef thin, pile it onto a toasted hoagie roll, and add caramelized onions, peppers, and a splash of au jus. This is a crowd-pleasing meal for any occasion.

Beef Salad

Cold sliced london broil makes an excellent protein topping for a hearty salad. Pair it with mixed greens, tomatoes, cucumbers, and a tangy vinaigrette.

Meal Prep Friendly

London broil slices beautifully for meal prep. Cook a large batch on Sunday, slice it, and store it in the fridge. It reheats well and makes quick lunches throughout the week.

If you want to explore more beef cooking techniques, check out our guide on how to broil a hamburger in oven for additional broiling tips that apply to beef cooking as well.

Expert Tips for Perfect London Broil Every Time

Professional chefs share a few tricks that take london broil from good to great.

• Use a meat thermometer. Guessing doneness leads to overcooked or undercooked beef. A simple instant-read thermometer removes all the guesswork.
• Bring the meat to room temperature. Take the beef out of the refrigerator 30 minutes before cooking. Even cooking starts from a more uniform temperature.
• Sear both sides. Broiling one side and then flipping ensures a caramelized crust on the entire steak.
• Add a finishing salt. A sprinkle of flaky sea salt right after cooking adds texture and bursts of flavor.
• Let the beef rest uncovered. This allows the surface to dry slightly, which improves the texture of each slice.

The more you cook london broil, the more intuitive the process becomes. Start with the basic technique and adjust based on your preferences and equipment.

Frequently Asked Questions

What is the best cut of meat for london broil?

Top round steak is the most traditional and widely recommended cut for london broil. Flank steak and sirloin tip also work very well. All three are lean cuts that benefit from marinating and high-heat broiling to achieve tenderness and flavor.

How long should you marinate london broil?

Marinate for at least 2 hours, but overnight is ideal. The acid and enzymes in the marinade need time to break down the tough muscle fibers. Shorter marinating times still add flavor, but longer soaks produce noticeably more tender results.

What temperature should london broil be cooked to?

For medium-rare, pull the beef at an internal temperature of 130°F. For medium, aim for 140°F. For medium-well, 150°F. Always use a meat thermometer for accuracy, and remember that the temperature will rise a few degrees as the meat rests.

Can you cook london broil on a grill instead of in the oven?

Absolutely. Grilling london broil works beautifully and adds a smoky flavor that many people love. Use high direct heat, cook for about 4 to 6 minutes per side, and follow the same slicing and resting guidelines as oven-broiled beef.

Why is my london broil tough even after cooking?

The most common reason is slicing with the grain instead of against it. Another possibility is overcooking the beef, which dries out the lean meat and makes it chewy. Make sure you marinate long enough and use a meat thermometer to avoid cooking past your desired doneness.

How do you store leftover london broil?

Store sliced london broil in an airtight container in the refrigerator for up to 4 days. It also freezes well for up to 3 months. Reheat gently in a skillet or microwave, and always slice against the grain before serving for the best texture.

Conclusion

London broil is one of the most rewarding beef dishes you can make at home. It takes a tough, affordable cut of meat and turns it into something truly delicious through the power of marinating and high-heat broiling. The process is simple, but every step counts.

Start with the right beef cut. Marinate it well. Cook it at high heat. Rest it before slicing. And always cut against the grain. Follow these principles and you will consistently produce tender, juicy, flavorful london broil that impresses everyone at the table.

Whether you are cooking for a family dinner or meal prepping for the week ahead, london broil delivers. It is affordable, versatile, and endlessly adaptable to your favorite flavors. Give it a try this week and taste the difference that a little technique makes.