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Home » Keto Recipes » Slow Cooker Recipes

Published: Mar 16, 2020 · by: jenniferbanz

Slow Cooker Balsamic London Broil

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

Slow Cooker Balsamic London Broil

Crockpot London Broil is a melt-in-your-mouth roast, seared to tasty perfection...cooked in a savory balsamic marinade 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!
4.65 from 14 votes
PRINT RECIPE SAVE TO FAVORITESSaved! PIN RECIPE
Course: dinner, Main Course
Cuisine: American
Prep Time: 10 minutes
Cook Time: 4 hours
Total Time: 4 hours 10 minutes
Servings: 6
Calories: 353kcal
Author: Jennifer Banz

Ingredients

  • 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

Equipment

  • Slow Cooker (Here's the one I love)

Instructions

  • 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.

Jennifer's tips

  • 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.
Servings: 6

Nutrition per serving

Calories: 353kcal | Carbohydrates: 4g | Protein: 49g | Fat: 18g | Saturated Fat: 7g | Sugar: 2g

Nutrition is provided as a courtesy only. Please re-calculate on your own with the ingredients and amounts you used for the most accurate data.

Keyword :recipe for london broil

More Slow Cooker Recipes

  • Carnitas - The Ultimate Pork Shoulder Recipe
  • Keto White Chicken Chili - Crockpot or Stove Top
  • Keto Teriyaki Chicken Legs Recipe
  • 4 Keto Crockpot Freezer Meals

Reader Interactions

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    Recipe Reviews




  1. Judy S says

    February 06, 2023 at 12:12 pm

    5 stars
    I made this last night but used a smaller London Broil. It absolutely melted into the liquid and was beyond delicious. I added a bit more onion, a portobello mushroom which I sliced and quickly sauteed to get some caramelization, a couple of handfuls of baby carrots and a splash of red wine. Just before serving I tossed in about 2 cups of baby spinach (I'm all about one pot, one bowl dinners so between the carrots & spinach I had my veggies!). I decided that rather than noodle I'd make Polenta with a bit of butter & Parmesan (my first time making Polenta but it won't be my last). When I tell you we were using our fingers to get every morsel out of the bowl I'm not lying! Thank you for an easy and delicious recipe. I don't eat red meat very often but this will definitely be on my fall/winter rotation from now on.

    Reply
  2. Kathy Wadsworth says

    August 23, 2022 at 7:59 pm

    I made this and that sauce/gravy is so good! I wish I would have doubled the sauce ingredients. Definitely a keeper👍

    Reply
  3. Judith says

    April 07, 2022 at 2:06 pm

    I followed this recipe almost to the tee. I didn't have avocado oil so i used olive oil. My husband loved it but wished it had more gravy. Will make it again only next time double the gravy.

    Reply
  4. Mary W says

    February 21, 2022 at 8:34 pm

    Wow you should make this! The 2 things I did differently were that I marinated the beef overnight in teriyaki sauce and I didn't sear it. My husband loved it and said to make it again. 😄

    Reply
  5. Brian says

    January 25, 2021 at 8:13 pm

    5 stars
    Excellent, quick, the meat did fall apart beautifully and super tasty! I used about a 2 pound london broil and followed the recipe fairly closely for the crock pot. I did not use butter and avacado oil but since I had just fried bacon I seared ours in some bacon grease and used salt, pepper and some mesquite seasoning too. It turned out great (8+ hours on Low) and we loved it with the cheesy potato dish, roasted corn and a nice flavored bread. Awesome recipe with a great result. This is a keeper for any roast if you want fall-apart
    TENDER! So tasty and easy.

    Reply
  6. Beth says

    January 06, 2021 at 2:42 pm

    5 stars
    I followed the recipe for the ingredients exactly with a very lean piece of frozen London broil. I used the Instant Pot for about 35 minutes on high and let it rest for about 10. When I opened the Instant Pot, I could tell it needed just a little bit more for it to fall apart. I cut it into 8ths and put it back on high for 7 more minutes. It was so good! The only thing I would change, for my personal preference, is to use a little less brown sugar. With the sweetness of the balsamic, it seemed a bit too sweet.

    Reply
  7. Casey says

    December 17, 2020 at 4:35 pm

    5 stars
    This was amazing! And so easy! It will definitely be our go-to slow cooker recipe from now on.

    Reply
  8. Jacqueline Mendoza says

    December 11, 2020 at 1:08 pm

    5 stars
    My family loved this recipe the first time I made it 2 weeks ago!! Today, I am substituting rump roast for London Broil. I hope it will turn out as good!! Thank you!!

    Reply
  9. Rhonda Walker says

    October 19, 2020 at 10:21 am

    Need this for my husband and he absolutely loved it well make it several times again

    Reply
  10. Joann says

    October 04, 2020 at 9:14 pm

    If I sear the meat in a skillet should I pour the butter and oil used into my crock pot?

    Reply
    • jenniferbanz says

      October 12, 2020 at 9:19 am

      I wouldn't

      Reply
    • Carmen says

      May 14, 2021 at 10:47 am

      The butter and oil is used to sear it...so no if you did that already.

      Reply
  11. M. Bennett says

    September 07, 2020 at 12:27 am

    5 stars
    Loved it! It was moist and delicious. Everyone was happy. My only suggestion would be to wait a half an hour or so after shredding. The meat will absorb that lovely sauce even more. Will be making it often!

    Reply
    • Karisa Levasseur says

      September 28, 2020 at 5:09 pm

      About how long on the sear?

      Reply
      • Carmen says

        May 14, 2021 at 10:49 am

        As soon as u see it browned on both sides

      • Jeff says

        August 07, 2022 at 7:06 pm

        5 stars
        Do you what searing is?Its just to brown it.It finishes cooking in crock pot

  12. Claudia Lamascolo says

    December 13, 2019 at 10:00 am

    5 stars
    I love the paste and avocado oil used in here, those two flavors must make this super tasty!

    Reply
  13. Allison says

    December 13, 2019 at 9:46 am

    5 stars
    Just pinned it because we will be making this over and over. Delish!

    Reply
  14. Jeff says

    November 21, 2019 at 4:51 pm

    Will this recipe work for an instant pot?

    Reply
    • jenniferbanz says

      November 22, 2019 at 8:45 am

      Yes! If you want to keep the roast whole, you will want to start with 35 minutes on high pressure and then a 10 minute natural pressure release.

      Reply
      • Nina says

        August 29, 2020 at 3:01 pm

        Thank you for this added info!

      • sarah holbrook says

        August 02, 2021 at 1:34 pm

        Thank you, this is exactly what I was looking for!

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Welcome!

Jennifer

Hey there, I'm Jennifer! I’m the creator behind Low Carb with Jennifer and author of the cookbook Live Life Keto. 

I've been cooking low carb/keto for the past 10 years and it has helped me shed over 70 pounds!

My keto recipes reflect my philosophy on cooking...everything needs to be easy, fast, exceptionally delicious, and use common ingredients.

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