Slow Cooker London Broil

By Danielle on October 26, 2022, Updated November 4, 2022 6 Comments

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

cooked beef with carrots and potatoes on a plate

I've cooked this Sous Vide London Broil before and it was just as delicious! But I really want to try the slow cooker this time around and boy am I glad that I did!

London Broil is a favorite in our house (it's one of the more inexpensive cuts of beef), but the sides are also VERY well appreciated. Some of our favorite sides include Roasted Frozen Broccoli and Air Fryer Carrots (Maple Glazed).

Of course, you need to try some Instant Pot Mashed Sweet Potatoes or Instant Pot Scalloped Potatoes to go with the London Broil!

If you're looking for my slow cooker recipes, then check out Slow Cooker Pork Carnitas Recipe or Slow Cooker Beef Pot Roast Recipe! Pretty much any slow cooker recipe gets two thumbs up here.

And for a quick and easy recipe, this Instant Pot london broil is great too!

Why This Recipe Works

The slow cooker method ensures that the London Broil will be cooked evenly from edge to center.
Adding garlic gloves and red wine to the mix ensures that the steak will be full of flavor.
Allowing the steak to rest in the slow cooker helps to tenderize it and make it even more mouthwatering.

Ingredients

For a full list of ingredients and quantities, check out the recipe card at the end of this post.

For this recipe, you're going to need 3-4 pounds of London Broil. This type of steak can sometimes be labeled as flank steak or top round at the grocery store.

This recipe uses brandy, but you can use whiskey or bourbon or even omit it altogether.

It might surprise you that instant coffee is on the ingredient list, 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.

The shallots need to be sliced thin, so if you don't have a sharp knife or mandolin slicer, consider using onion instead.

Step by Step Instructions

STEP 1: Heat the cooking oil in a 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 in the slow cooker insert.

STEP 4: Add the remaining ingredients (except carrots and potatoes).

beef in a slow cooker with shallots, sauce and mustard

STEP 5: Cook on low heat 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.

london broil on a plate covered in sauce, carrots and potatoes

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

a large cooked piece of beef on a silver platter served with cooked carrots and potatoes

Expert Tips

1. The key to a succulent Slow Cooker London Broil is to choose a good cut of meat. Look for a well-marbled London broil steak that's about 1-inch thick. Avoid any cuts that are too lean or too thick.

2. Season the meat well. Be generous with the seasoning, as it will help to create a delicious flavor profile.

3. 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.

4. 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.

5. Once the Slow Cooker London Broil is cooked through, 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.

6. Don't cut the potatoes until you are ready to add them - otherwise, they turn brown.

7. For more flavorful results, salt the London broil and let it sit in the fridge, uncovered, overnight before cooking.

Common Questions

Should London Broil be cooked fast or slow?

The answer to this question depends on personal preference. Some people prefer to cook London Broil slowly at a lower temperature, resulting in more tender and juicy meat.

Others prefer to cook it quickly at a high temperature for a more seared and crispy texture. Ultimately, it is up to the individual cook to decide how they want their London Broil prepared.

Should London Broil be marinated before cooking?

Marinating the meat can add additional flavor and tenderize it, but it is not necessary. If the cook chooses to marinate their London Broil, they can use any type of marinade or seasoning that they prefer. However, it is important to note that marinating for too long can result in a mushy texture.

How should London Broil be sliced and served?

London Broil should be thinly sliced against the grain before serving. It can be served as a main dish with sides such as potatoes or vegetables or can be used in sandwiches or salads. London Broil is also commonly sliced and served as cold cuts.