How Long to Cook London Broil in Oven at 375º or 400ºF?

How Long to Cook London Broil in Oven at 375º or 400ºF?

London broil is a tough, lean cut of meat that benefits from marinating and slow cooking.

The best way to cook London broil is in the oven, and the cooking time will depend on the thickness of your steak and the temperature you cook it at.

It’s not always clear how long to cook a particular cut of meat. This is especially true with London broil, which can be cooked at different temperatures to achieve varying levels of doneness

In this post, we’ll tell you how long you should cook your London broil perfectly at 375 or 400ºF.

What is the best temperature to cook London Broil?

London broil cooking time and temperature

London Broil is a type of steak typically cooked best at 375ºF. This cooking method helps seal in the steak’s natural juices, resulting in a tender and flavorful piece of meat. However, it is important to avoid overcooking London Broil, as this can make the meat tough and dry.

The best way to ensure that your London Broil is cooked to perfection is to use a meat thermometer.

Inserted into the thickest part of the steak should reach an internal temperature of 145 degrees Fahrenheit.

Once the London Broil has reached this temperature, it should be removed from the heat and allowed to rest for three to five minutes.

This resting period will allow the steak to finish cooking and will also help to keep it juicy and tender.

How long to cook London Broil in the oven at 375ºF?

How long to cook London Broil in the oven at 375ºF

The best way to cook a London Broil is to first marinate the meat for at least four hours, or overnight if possible. This will help to tenderize the meat and infuse it with flavor.

Make sure to pat the meat dry before cooking, as this will help to prevent it from steaming

If you’re cooking your London Broil at 375ºF, you’ll need to cook it for about 35-40 minutes.

This cooking time will result in a steak cooked through but still juicy and tender. If you prefer your steak to be on the rarer side, you can cook it for 30-35 minutes.

How long to cook London Broil in the oven at 400ºF?

How long to cook London Broil in the oven at 400ºF

For a 400ºF oven, cook the London Broil for 30-35 minutes. This will result in a medium-rare steak that is tender and juicy.

If you prefer your steak to be more well-done, simply increase the cooking time.

When the London Broil is finished cooking, let it rest for 5 minutes before slicing into it. This will help seal the juices and prevent the steak from drying out. Enjoy!

How long to cook London Broil in the oven at 450ºF?

Cooked London Broil

London Broil must be cooked carefully to avoid making it tough and chewy. The best way to cook London Broil is to first marinate it overnight.

Then, Preheat your oven to 450ºF. Place the London Broil on a rack in a roasting pan and roast for about 25-30 minutes. Serve with your favorite sides, and enjoy!

Should I cook at 375, 400, or 450ºF?

Temperature (ºF)Cooking Time
350ºF40 – 45 Minutes
375ºF35 – 40 Minutes
400ºF30 – 35 Minutes
450ºF25 – 30 Minutes

If you’re looking for a delicious London Broil, the secret is the cooking temperature. While some swear by cooking it at a high temperature, such as 450 degrees Fahrenheit, this can lead to a dry and tough steak.

The key is to cook London Broil at a lower temperature, such as 375 or 400 degrees Fahrenheit. 

This will help to prevent the meat from drying out, and it will also allow the flavors to come through.

So if you’re looking for the perfect London Broil, cook it at a lower temperature for best results.

How Long to Cook London Broil in Oven at 375º or 400ºF?

London Broil at 375 in Oven

This recipe is for a London Broil cooked in the oven at 375 degrees Fahrenheit. This recipe is fairly simple and does not require much time or preparation. The London Broil will come out tender and juicy if cooked properly.
5 from 1 vote
Prep Time 5 mins
Cook Time 35 mins
Resting Time 5 mins
Course Main Course
Cuisine American
Servings 4 Servings


  • 2 pounds Flank Steak
  • Kosher or sea salt
  • Freshly ground black pepper.
  • Garlic powder
  • Onion powder
  • Olive oil or cooking spray


  • Preheat the oven to 375 degrees F (190 degrees C).
  • Trim any excess fat from the steak.
  • Sprinkle both sides of the steak with salt, pepper, garlic powder, and onion powder.
  • Place steak on a rack in a roasting pan, and roast in the oven for 35 to 40 minutes or to the desired doneness.
  • Remove steak from the oven, and drizzle with olive oil or cooking spray.
  • Let steak rest for 5 minutes before slicing thinly against the grain.
  • Enjoy!
Keyword How long to cook London Broil at 375ºF
Tried this recipe?Let us know how it was!

How do I know when the London Broil is done?

There are many ways to tell if a London broil is done with the help of a touch test. To do this, simply insert a skewer or fork into the center of the meat and press down. If the skewer slides in easily and the meat feels very soft, it is probably overcooked.

If the skewer meets resistance and the meat feels firm, it is probably medium-rare. And if the skewer has difficulty penetrating the meat’s surface and feels quite tough, it is probably rare.

Of course, this method is not foolproof, so it’s always best to err on caution and pull the meat off the grill when it is still slightly pink in the center. Better to have slightly overcooked meat than food poisoning!

Should I cover the London Broil with foil?

It is not necessary to cover London Broil with foil while cooking.

Covering the meat may cause it to dry out, as the steam will be trapped underneath the foil. If you are concerned about the meat cooking evenly, flip it over halfway through the cooking time. Otherwise, let the meat cook uncovered to ensure it remains tender and juicy.

Can I add or replace some ingredients?

Of course! This recipe is very versatile and can be easily customized to your liking. For example, you could replace the garlic powder with freshly minced garlic or the onion powder with fresh onions. 

You could add other herbs and spices to the mix, such as rosemary or thyme.

If you’re feeling adventurous, you could even try marinating the meat in various sauces or marinades. The possibilities are endless, so have fun and experiment!

Tips and tricks for a better recipe

Spices for this recipe

First of all, for a lower-fat London broil, remove as much visible fat from the steak as possible before cooking.

  • If you don’t have a rack for your roasting pan, you can cook the steak directly on the pan, but it may not cook as evenly.
  • To ensure even cooking, ensure the steak is of even thickness throughout. You may need to pound it slightly with a meat mallet if it’s too thick in some areas.
  • Use a good quality olive oil for drizzling, or try another flavorful oil such as avocado or sesame.
  • Let the steak rest for at least 5 to 10 minutes before slicing to allow the juices to redistribute. This will also make it easier to slice.
  • For extra flavor, try serving the London broil with a flavorful sauce or gravy.
  • If you have leftovers, London broil makes great sandwiches the next day.
  • London broil can also be cooked on the grill – just be sure to use indirect heat so it doesn’t charge too much outside.

Finally, to make ahead, cook the London broil as directed, then slice and store in an airtight container in the fridge for up to 3 days. Reheat individual slices in the microwave as needed.

Final Words

This recipe is perfect for a busy weeknight meal or entertaining guests! Cooking the London Broil in the oven frees up your stove top for other dishes, and the steak can be served with various side dishes.

Similar Recipes from HotSalty: