How To Cook Top Round London Broil In Slow Cooker

Published: Mar 16, 2020 · by: · As an Amazon Associate I earn from qualifying purchases

Crockpot London Broil is a melt-in-your-mouth roast, seared to tasty perfection…cooked in a savory balsamic gravy all in the convenience of your slow cooker. Perfect weekday meal with it's easy prep time and it's "set it and forget it" simplicity! Create a seemingly effortless dish with mouthwatering, fall apart results! Pair with mashed potatoes or cauliflower to make this a hearty recipe everyone can enjoy!

saucy shredded beef with cauliflower mash in a white plate

Related: I get all of my grass fed beef and pasture raised chicken from Butcher Box. Read my honest review here.

This recipe is for those of you who purchased a London Broil cut of meat from the grocery store and wondered what to do with it.

Traditionally, London Broil isn't a cut of meat, but a method for cooking tough cuts such as flank or top round steak.

The traditional method is to marinate the roast, and then sear the meat like a steak and cut it against the grain to serve.

I prefer to cook mine until fall apart tender in a slow cooker.

London Broils are a leaner and tougher cut of beef, which makes it hard to keep tender. This makes it a perfect choice for your slow cooker… to keep it nice and tender in savory juices while it cooks! Seared to lock in the flavor and slow cooked to perfection! This slow cooker London Broil recipe is great for those busy weekdays! Super easy prep time and set it and come home to a hearty meal for the whole family. Who doesn't love that? This is going to be so delicious!

Let's get started!

How to make London broil fall apart tender

Let's first start by seasoning both side of the roast generously with salt and pepper.

London broil seasoned with salt and pepper on a white plate

Sear the London Broil:

If you have a slow cooker that has a sear function, go ahead and pre-heat that. If you do not have a slow cooker with a sear function, you can use a large skillet over medium-high heat.

Now we can add in the butter and avocado oil and sear the roast on both sides for a few minutes to get a brown crust.

roast being seared in a slow cooker

Now, with the London Broil roast in your slow cooker, add in the onion and the garlic. I love to use frozen diced onion for even easier prep time.

Making the Balsamic Sauce:

In a small bowl, mix together the beef broth, tomato paste, balsamic vinegar, brown sugar and Worcestershire.

Pour this mixture over the roast.

meat in a slow cooker with balsamic mixture being poured

Cook in the slow cooker on low for 8 hours or high for 4 hours.

When finished, shred with two forks and serve with mashed potatoes or mashed cauliflower.

This crockpot London boil is a perfect make-ahead meal that will please the whole family!

shredded balsamic London broil in a black crock pot

Like this easy keto friendly crockpot recipe? Check out my recipes for Crock Pot Pork Roast- Only 3 Ingredients, Cube Steak Recipe (Crockpot or Stove Top) or Crock Pot BBQ Chicken Thighs!

balsamic London broil in a crock pot

3 Pound London Broil Roast
kosher salt and pepper
2 Tablespoons Butter
1 Tablespoon Avocado oil (Click here for my favorite brand on Amazon)
1 Small onion, diced
2 Garlic cloves, minced
½ Cup Beef broth
2 Tablespoons Tomato paste
2 Tablespoons Balsamic vinegar
2 Tablespoons Brown sugar use sugar free for keto
1 Tablespoon Worcestershire Sauce

Season both sides of the London broil generously with salt and pepper.

Searing the London Broil:

Using the sear function on your slow cooker or a large skillet over medium-high heat.
Heat the slow cooker or the skillet and add in the butter and avocado oil.
Sear the London Broil for a few minutes on each side, or until each side is browned.
With the roast in the slow cooker, add in the onion and the garlic.

For the Balsamic Mixture:

In a small bowl, mix together the beef broth, tomato paste, balsamic vinegar, brown sugar and Worcestershire. Pour the mixture over the roast.
Cook in the slow cooker on low for 8 hours, or high for 4 hours.
When finished, shred with two forks and serve with mashed potatoes or mashed cauliflower.

Use the remaining liquid left in the slow cooker to make a gravy. You can whisk in ½ teaspoon Xanthan gum for keto and bring the liquid to a boil or make a slurry with 1 tablespoon of corn starch and ¼ cup of water whisked together and added to the gravy, then brought to a boil to thicken.