How to Cook a London Broil in the Oven

This is how to cook a London broil in the oven at 350 to tender and perfectly pink medium rare inside. Marinated and perfect in 12 minutes! If you have already enjoyed our Frozen Roast in the Oven this is going to be another protein packed dinner you’ll love.

How Long to Cook London Broil in Oven

This doesn’t take long, 10-15 minutes is it. Cooked to medium rare at 350F to stay flavorful, it is an economical cut of beef that when cooked properly, can result in a tender and delicious meal. The cooking time can vary depending on factors such as the thickness of the cut, desired doneness, and cooking method. Here’s a general guide to help you achieve a perfectly cooked London broil recipe;

To start with you want to choose a nice piece of beef about 1.5 inches thick or so. The difference between this and any other cut is the marinade. Almost every cook has their own answer as to what should be included in it. Oil, balsamic vinegar and garlic are typically the base and you can go from there. We use the same one for our London Broil for the Slow Cooker.

Now the timing will of course depend on the method your using, we are using the oven, and the thickness will vary it most. You want to use high heat for a limited amount of time for the best cook. 135 degrees F is the ideal internal temperature. If you had to come up with a general guide this would be pretty close;

How Long to Cook London Broil in Oven at 350

• Rare: 6-8 minutes per side – Internal temperature: 125 degrees F or 52° C
• Medium Rare: 8-10 minutes per side – Internal temperature: 130°F or 54 degrees C
• Medium: 10-12 minutes per side – Internal temperature: 140° F or 60° C
• Medium Well: 12-14 minutes per side – Internal temperature: 150 degrees F or 66 degrees C
• Well Done: 14-16 minutes per side – Internal temperature: 160° F or 71° C

To ensure you get T Bone Steak in Oven or this just right for your preferences, have a digital meat thermometer on hand. Always start with the minimum amount of time as even if two people are using their ovens those too will vary slightly, the rack height will slightly change things, fat content, there are tons of factors.

Ingredients

• 1-1.5 lbs topside beef
• 3 tbsp olive oil 1 tbsp for frying
• 2 tbsp soy sauce or half this and half Worcestershire sauce with an added kick
• 1 tbsp balsamic vinegar
• 1/2 tsp granulated garlic and granulated ginger
• Cumin and sea salt
• 1/2 tsp pepper

Things you will need are a freezer bag, baking sheet, cutting board and a sharp knife as well. The prep is much longer than the baking time so stay close when it comes to that point.

2 Pound London Broil Roast in Oven

Now the cut you choose is up to you but the thickness should max out at 2 inches, 1.5 is better. 1.5-2 pounds is typically the weight I like as well to feed our family of 5 with a side. For these reason many people will use a flank steak in oven to make it into this. Normally it is tough with tons of connective tissue but after marinated it breaks down and slices up nice and tender.

Directions

• Rinse and dry the beef with paper towels well on all sides.
• Mix 2 tbsp olive oil, balsamic vinegar, soy sauce, spices in a bowl – everything except salt.
• Pour the marinade into a bag and add the beef.
• Roll around to coat and tie the bag or zip closed sucking all the air out, leave for an hour or two to marinate.
• Dry the beef with napkins from the remains of the marinade. Preheat the oven to 350 F.
• Heat the oil for frying and fry the beef over medium heat on stove for 4 minutes on each side to brown.
• Transfer the beef to an oiled baking dish, season with salt and cover with foil.
• Put in the oven and bake for about 12 – 15 more minutes or until it reaches the internal temperature you desire.

To get the medium level, you need to get a temperature of about 140 F. It’s better to wait until 125 F and then take the beef out of the oven. After that, wrap the beef in foil and let it rest for 10 minutes – during this time the temperature inside the piece will rise to 135-140F.

London Broil Roast in Oven without Searing

If you skip searing at the beginning it won’t be as juicy but you can do this. The reason we add this step is to lock in the juices with a slight cook and browning on all sides before baking. If you do not want to do this then just add 6-8 minutes more for the cook time to compensate.

There are a ton of tender London Broil marinade ideas. You should choose one with the flavors that you love. Some have a stronger balsamic flavor while others are heavier with the acid like lemon juice.

Basically you need something to marinate a normally tough cut of meat before broiling or grilling it. The marinade not only adds flavor but also helps to tenderize the meat. Here are a few ideas to elevate your steak experience. You just whisk together, set your top round steak, flank steak or other cut into the gallon freezer bag, zip and refrigerate for 2 hours – overnight.

London Broil Marinade

• 1/4 cup balsamic vinegar
• 2 tablespoons olive oil
• 2 cloves garlic, minced
• 1 tablespoon Dijon mustard
• 1 teaspoon dried rosemary
• 1 teaspoon dried thyme
• Salt and pepper to taste

Citrus Herb Marinade

• Juice and zest of 1 orange
• Juice and zest of 1 lemon
• 1/4 cup olive oil
• 2 cloves garlic, minced
• 1 tablespoon fresh chopped parsley
• 1 tablespoon fresh chopped thyme
• Salt and pepper to taste

How to Reheat Leftover London Broil

Reheating leftover beef in general can be a bit tricky, as overcooking can cause the meat to become tough and dry. However, with the right techniques, you can successfully reheat your leftovers while preserving its flavor and tenderness. Here are a few methods to consider:

in the Oven

• This method is suitable for larger pieces of leftovers
• Preheat your oven to a low temperature, around 275°F or 135°C
• Place the leftover London broil on a baking sheet and cover it with aluminum foil to prevent drying.
• Heat the meat in the oven for about 15-20 minutes, or until it reaches the desired internal temperature. Use a meat thermometer to monitor the temperature.

on the Stove

• This method is quicker and works well for thinner slices of leftover London broil.
• Heat a skillet over medium heat and add a small amount of oil or butter.
• Once the skillet is hot, add the leftover slices of London broil.
• Heat the slices for 1-2 minutes on each side, just until they are warmed through. Be careful not to overcook, as this can make the meat tough.

How to Reheat London Broil in the Microwave

• This is the quickest option but can lead to uneven reheating if not done carefully.
• Place the leftover London broil on a microwave-safe plate.
• Cover the meat with a damp paper towel to help retain moisture.
• Microwave the meat on medium power for 30-second intervals, checking and flipping the meat each time until it’s heated to your liking. Avoid overheating, as this can cause the meat to dry out.

Tips

• Allow the reheated meat to rest for a few minutes before slicing or serving. This helps redistribute the juices and ensures a more tender result.
• To prevent the meat from drying out during reheating, consider adding a bit of moisture. This can be achieved by covering the meat with foil or using a damp paper towel while reheating.
• If you’re reheating whole slices, consider slicing them into thinner pieces before reheating. Thinner slices will heat more evenly and quickly.
• When reheating, aim to reach an internal temperature of about 130°F for medium-rare or 140°F for medium. Use a meat thermometer to check the temperature and avoid overcooking.
• If you have some of the original marinade or sauce used, you can drizzle a bit over the meat before reheating to add flavor and moisture.

By using these methods and tips, you can successfully reheat beef leftovers without drying it out, sacrificing its flavor or tenderness. Just remember to be cautious about overcooking and keep a close eye on the reheating process to ensure a delicious result.