How to Cook London Broil in Oven

You’ve finally found the best recipe for cooking London Broil in the oven. It’s super tender and juicy all thanks to a trick that helps the steak before you even put it in the oven!

You’ll love this London Broil in Oven Recipe

It’s no secret London broil thrives on being marinaded to really pull in flavor to this lean meat, but it’s what you do after marinating it that makes all the difference.

Once you’re ready to cook the London Broil in the oven, let it sit at room temperature for 30 minutes. This helps the meat cook in the inside faster keeping the juices in tact.

And, don’t forget to let that meat rest after cooking it in the oven. This allows the London Broil juices to redistribute throughout. Meaning you don’t lose those juices when you cut the steak.

If you love this recipe, you’ll my recipes for Salisbury steak, baby back ribs, round steak, beef stroganoff, and pulled pork.

What is London Broil?

London broil is a cooking technique in which meat is marinated and then cooked under high heat until tender and juicy. 

Traditional London broil recipes are served as thinly cut meat that has been sliced against the grain.

What You’ll Need for this London Broil Oven Recipe

• Flank steak or top-round steak: 1 ½ pounds
• Olive oil: To help your seasonings stick
• Worcestershire sauce
• Minced garlic
• Black pepper
• Italian seasoning
• Ziploc bag: to marinate the meat
• A cast iron skillet or other pan: that can cook on the stove and is oven-safe

How to Make London Broil Marinade

Flavored with Worcestershire sauce, garlic, black pepper, and Italian seasoning, the marinade used in this London broil recipe for the oven is the perfect balance between tangy, savory, and earthy. 

And making the London Broil marinade is as simple as mixing all of the ingredients! I like to put them in a Ziploc bag and then add the steak to emerge it thoroughly.

I even have another London Broil Marinade recipe if you want to mix up the flavors!

How to Cook London Broil in an Oven

A full printable version of this recipe with ingredient measurements is available at the bottom of this post.

STEP ONE: In a mixing bowl, combine olive oil, Worcestershire sauce, garlic, black pepper, and Italian seasoning. Mix until the ingredients are thoroughly combined.

STEP TWO: Place your flank steak in a resealable bag or shallow bowl. Pour the marinade over the steak, making sure it is well coated.

STEP THREE: Seal the bag or cover the dish with plastic wrap, and marinate in the refrigerator for at least 2 hours.

STEP FOUR: Once you’re ready to cook, remove the marinated steak from the fridge and let it sit out at room temperature for about 30 minutes.

STEP FIVE: Preheat your oven to 350 degrees F (175°C). Meanwhile, place a cast iron skillet or pan on the stove top and heat it over medium-high heat.

STEP SIX: Add a bit of oil to the skillet and sear the steak for about 2-3 minutes on each side until a beautiful crust forms.

STEP SEVEN: Transfer the skillet with the steak to the preheated oven and continue to cook it for 10-15 minutes more or until it reaches your preferred level of doneness.

STEP EIGHT: After your steak reaches your desired temperature, remove it from the oven and let it rest for about 5-10 minutes. This resting period will allow the juices to redistribute, resulting in a juicier and more tender steak.

STEP NINE: Place your rested steak on a cutting board. Using a sharp knife, slice it against the grain into thin slices.

STEP TEN: Garnish with fresh parsley and serve with your favorite side dishes and sauces. If you like, you can add kosher salt to taste.

How Long to Cook London Broil in Oven

After you’ve seared your steak, put your London broil in the oven for another 10-15 minutes. The exact time in the oven will depend on how well done you prefer your meat.

Optimal London Broil Internal Temp

Use a meat thermometer to check the internal temperature and achieve your desired level of doneness. For medium-rare, aim for around 135°F (57°C), and for medium, around 145°F (63°C).

I love using my Thermoworks alarm thermometer so it will beep when the inside reaches medium rare.

London Broil Oven Recipe Tips 

• Marinate your steak overnight if possible. This allows the marinade to soak into the steak for maximum flavor.
• Let the steak come to room temperature. After marinating the steak, let it sit in the bag for 30-60 minutes to let it come to full room temperature to get a more juicy steak.
• Use an alarm thermometer so you can pull your steak out as soon as it hits your desired doneness. This will save you from constantly opening the oven and checking.
• Let the London Broil rest for 5 to 10 minutes after cooking in the oven so the juices redistribute and don’t leave the steak when cutting.
• Slice your meat against the grain to make the meat more tender and easy to chew. Locate the muscle fibers running through the beef, then cut across them rather than in the same direction.

What to Pair with this Recipe for London Broil

A few delicious sides to make this meal complete include twice baked mashed potatoes, Yukon potatoes, roasted carrots and asparagus, or air fryer mushrooms. You can also enjoy this recipe with some zesty chimichurri sauce.

London Broil Recipe Oven FAQs

What cut of meat is London Broil?

London broil is the name of the dish, not a particular cut of beef.

Flank steak is the most common cut used for London broil because of how well it tenderizes after being marinated. 

Top-round steak is another great alternative for this recipe.

Should I sear my London Broil before baking?

Yes, searing your London broil before baking will not only give the meat a beautiful crust but also help to lock in the flavor and juices.

This step is essential for the very best results! 

Why did my London broil come out tough?

Overcooking your London broil will cause it to quickly dry out and become tough. When cooked carefully, your lean cut of meat will become nice and tender over time.

Be sure to monitor the internal temperature to check for doneness before it’s cooked for too long.

Why do people like London broil?

London broil is a fan-favorite recipe because of its low-fat content and incredible flavor and texture.