Tender, juicy and delicious Herb Marinated London Broil is naturally keto! It’s impressive enough to entertain with, but easy enough for weeknight dinner. And the best part is, you don’t need an expensive cut of meat!

There’s just something about a beautiful steak dinner that feels fancy. And you don’t need an expensive cut of meat to have a delicious steak dinner!

We’re going to show you how to cook an affordable London Broil so that it’s tender, juicy, and mouth-wateringly delicious.

The best part is, steak is satisfying and naturally keto! Pair it with mashed cauliflower, roasted broccoli, low carb biscuits, or a leafy green salad for a hearty steak dinner that the whole family will enjoy.

Make sure to prep the steak the night before so it can marinate in the fridge overnight. And then it’s easy to make in a matter of minutes! This herb marinated London Broil is definitely worthy of entertaining with, or serving as part of a lovely holiday spread.

In This Article

The Best Tender Marinated London Broil Recipe

Marinade Ingredients

ingredients for marinated london broil recipe

Red wine vinegar
Extra-virgin olive oil
Garlic
Rosemary
Thyme
Lemon juice
Salt
Black pepper

Step-by-Step Instructions

Prep your ingredients.
Add the vinegar, oil, garlic, rosemary, thyme, lemon juice, salt, black pepper, and steak to a gallon-size plastic bag.
Look at those herbs and seasonings – you just know this will be delicious!
Seal the bag and squeeze everything around to massage the meat.
Place the bag in a large bowl and refrigerate for 8 hours (or up to 2 days).
Remove the steak from the fridge and let it sit for 10 minutes. Position a rack directly under the broiler. Preheat the broiler to HIGH. Cover a large baking tray with foil. Remove the steak from the plastic bag, and transfer it to the prepared tray. Discard the bag and marinade.
Broil the steak for 6 to 8 minutes on the first side and then flip and broil about 4 to 5 minutes on the second side, or until an internal temperature reaches 135F (for medium rare).
After broiling, let the steak rest for 10 minutes before thinly slicing across the grain.

How Long Does London Broil Last in the Fridge?

Before cooking, you can marinade this for up to 2 days in the fridge.

After cooking, leftovers will stay good for up to 4 days in the fridge.

Variations on This Recipe

Change the vinegar. If you don’t have red wine vinegar, white wine vinegar or apple cider vinegar are also good options.
Switch up the fresh herbs. Use whatever fresh herbs you like or have on hand. Oregano is another one of our favorites.
Add onion to the marinade. Simply slice up half of a yellow onion and add it to the marinade.

London Broil Tips

Don’t Rush the Marinade

Around 8 hours is perfect, but you can also let this go for up to 2 days in the fridge.

Fresh Herbs Make a Difference

But if you don’t have fresh herbs, in a pinch you can use dried (use 1/3 of the amount, so 1 teaspoon dried herbs instead of 1 tablespoon fresh herbs).

You Can Cook London Broil on a Grill

Similar to cooking steak under a broiler, you can cook it on a grill (on high heat) until it reaches your desired level of doneness.

London Broil FAQs

What Cut of Meat is London Broil?

There are a few different cuts of meat that are typically used to make London Broil, including top round steak or flank steak. You will also sometimes find these cuts of meat labeled as a London Broil in grocery stores.

Is London Broil Tough or Tender?

The cuts of meat that are used to make a London Broil are typically on the leaner side. As a result, this can cause it to be tough and sometimes gamey if it’s not prepared and cooked correctly.

If you marinade your meat and then cook it quickly over high heat, it should turn out tender, juicy, and delicious!

Does London Broil Have to be Marinated?

We highly recommend marinating this. When people complain that a London Broil is tough instead of tender and juicy, it’s usually because they didn’t marinate it, or didn’t marinate it long enough!

Does Vinegar Tenderize Meat?

Yes! Acid, such as vinegar or lemon juice help to break down and tenderize meat.

Can You Marinate London Broil Too Long?

For best results, we recommend marinating this for at least 8 hours, or up to 2 days.

If you marinate it longer than that, the meat can start to break down and it may have a vinegary flavor.

Should London Broil be Cooked Fast or Slow?

Because it’s a fairly lean cut of meat, we like to cook this fast over a very hot heat source.

Low Carb and Keto Side Dishes to Make it a Meal