Slow Cooker London Broil With Potatoes and Carrots

London Broil is a classic dish that is usually cooked in the oven. However, this slow cooker London broil recipe is an even easier way to make this tasty meal and it comes out way juicier! 

I've cooked this sous vide London broil before and it was just as delicious! But I really wanted to try the low and slow cooking method instead this time around and boy am I glad that I did! 

This London broil crock pot recipe came out perfectly fall-apart tender and delicious and has been requested multiple times over! Imagine coming home to the delicious smell of slow cooked meat after a hard day of work and knowing all you have to do is open the lid and serve it!

London Broil is a favorite in our house as it's one of the more inexpensive cuts of beef and is also ultra easy to make. Tender pieces of slow cooked beef with flavor packed potatoes in carrots in a deliciously savory gravy - it's the perfect way to cook this crowd favorite, just like this slow cooker pot roast.

You can make this in the Instant pot instead of the slow cooker as well using this instant pot london broil recipe!

Why you'll love this slow cooked London broil recipe 

• Adding brandy, red wine, soy sauce and mustard are use to add amazing flavor to this slow cooker meal.
• Searing it in a large cast iron pan before using the slow cooking method allows the meat to get the Maillard effect, which is the browning on the outside that gives it extra flavor.
• Cooking this otherwise tough and lean cut of meat low and slow in a crock pot allows it to get ultra tender while staying moist and delicious. It can be a great roast beef for sandwiches too!
• Most of the ingredients are pantry staples so you can easily make this tender London broil without a ton of trips to the store.
• This recipe is mostly hands off and can cook for hours on low heat while you're at work and be ready to eat when you get home - perfect for busy weekdays!
• The smell is absolutely incredible and fills your home with a home-cooked feel, plus it's easy and delicious to make 🙂

Ingredients

For a full list of ingredients and quantities to make fork-tender London broil in a crock pot, check out the recipe card at the end of this post. 

For this recipe, you're going to need about 3-4 pounds of London broil. This type of steak can sometimes be labeled as flank steak or top round steak, or sometimes top sirloin and you can find London broil at the grocery store. *Learn: What is London Broil? Look for a well-marbled London broil steak that's about 1 ½ to 2" thick. Avoid any cuts that are too lean.

London broil roast recipe uses brandy, but you can use sherry, whiskey or bourbon or even omit it altogether.

It might surprise you that instant coffee is used in this recipe, but it adds a depth of flavor without tasting like coffee. Feel free to omit if you don't have it on hand, or swap in your favorite dry rub seasoning blend instead.

Variations and substitutions

London broil is typically served with potatoes and carrots, but any of the variations work great!

• This can be made with a beef chuck roast or even a pork shoulder or lamb shoulder.
• Use any root vegetables you prefer - I find that turnips, parsnips, and sweet potatoes all turn out great also. Green beans also work great!
• Add 1-2 chipotle peppers, hot peppers, or a couple teaspoons of chili powder or cayenne pepper if you want to add spice to this dish.
• Omit the brandy and red wine to keep this alcohol free and substitute with beef broth (try this slow cooker beef bone broth). Add a touch of balsamic vinegar or Worcestershire sauce to add more tangy flavor.
• Substitute onions for the shallots if needed.
• Add fresh mushrooms in with the vegetables.
• You can use red potatoes, white baby potatoes or even fingerling potatoes. It's also great served with mashed potatoes.
• Use any fresh herbs you prefer like rosemary, sage, parsley, etc. Throw in an onion soup mix to add a nice oniony flavor to the meat.

Step by step instructions to make crockpot London broil recipe

STEP 1: Heat the cooking oil (or olive oil) in a large cast iron skillet over medium-high heat. 

STEP 2: Season the London broil with salt and pepper and sear for about 1 minute on each side, until a brown crust is formed.

STEP 3: Remove from the skillet and place the London broil in the slow cooker insert. 

STEP 4: Add the remaining ingredients on top of the meat (except carrots and potatoes).

STEP 5: Cook on low for 8-10 hours. 

STEP 6: When 3 hours of cook time remain, add the carrots and potatoes. **for best results, lift the meat up and place the carrots and potatoes in the liquid, placing the meat back on top.

STEP 7: Use a large spoon to break up chunks of meat and serve with the carrots, potatoes, and cooking liquid. Transfer the London broil to a plate with the vegetables.

**NOTE: To thicken the gravy, mix 1 tablespoon of cornstarch with 1 tablespoon water to make a cornstarch slurry. Place the cooking liquid in a saucepan (add 1 cup of beef broth if there is not enough liquid) and bring to a simmer. Slowly stir the cornstarch slurry in while simmering. Remove from heat and serve.

Serve this wonderful recipe on a platter with the carrots and potatoes. This is also amazing served with some creamy sour cream mashed potatoes, simple egg noodles or truffle mashed potatoes, as well as some fresh veggies like this roasted frozen broccoli or these honey balsamic brussels sprouts.

And if we're being honest, I like this fork tender meat with some plain old instant pot jasmine rice myself.

Expert tips to make slow cooker London broil

1. Sear the meat on all sides in a hot skillet before adding it to the slow cooker. This will help to lock in the flavors and create a wonderful crust on the outside of the meat.
2. Set your slow cooker to low and cook the London broil for 8-10 hours, or until it's cooked through. Resist the temptation to peek inside, as opening the lid will let out all of the precious heat.
3. Once the meat is done cooking, let it rest for 10 minutes before slicing into it. This will allow all of the juices to redistribute, making for a juicier, more flavorful dish.
4. Don't cut the potatoes until you are ready to add them - otherwise, they turn brown.
5. For more flavorful results, salt the London broil and let it sit in the fridge, uncovered, overnight before cooking. 

Frequently asked questions 

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