London Broil In the Crock-Pot: A Cozy, Comforting Classic

As the days grow shorter and the temperature drops, nothing beats a hearty, comforting meal. And what better way to achieve that than with a slow cooker classic? Making London Broil in the Crockpot results in a juicy, fork-tender roast beef swimming in a luscious, herby brown gravy. With just 11 ingredients and 15 minutes of active prep, this recipe is perfect for cold weather. Plus, it’s a time-saving win since the marinating happens during the cooking process itself.

Close up shot of shredded London broil beef roast with herbed brown gravy and mashed potatoes.

What Does Slow Cooker London Broil Taste Like?

Prepare yourself for a rich, beefy, and super tender slice of meat coated with rosemary and thyme-scented gravy. When served on a bed of fluffy mashed potatoes with a side of sweet roasted carrots, you’ll have a picture-perfect meal reminiscent of Sunday suppers at your Nana’s house. In other words, it tastes like pure comfort.


To make this London Broil in a Crockpot, you only need 11 simple ingredients:

  • Avocado Oil
  • London Broil
  • Low Sodium Beef Broth
  • Fresh Rosemary & Thyme
  • Worcestershire Sauce
  • Garlic
  • Onion Powder
  • Salt
  • Unsalted Grass-Fed Butter
  • Cornstarch

Ingredients for making crockpot london broil measured out on a table.


While this recipe is already delightful as is, you can customize it based on your family’s preferences or the ingredients you have on hand. Here are a few substitutions to consider:

  • Avocado Oil: Sunflower oil, safflower oil, or grapeseed oil are all good substitutes.
  • Low Sodium Beef Broth: Chicken or vegetable stock or broth can be used instead.
  • Fresh Rosemary & Thyme: You can use dried herbs as a substitute.
  • Worcestershire Sauce: Soy sauce or fish sauce are possible substitutes.
  • Garlic: Garlic powder works well as a replacement.
  • Onion Powder: Fresh minced onion or shallot can be used instead.
  • Salt: Adjust based on the type of salt you prefer.
  • Unsalted Grass-Fed Butter: Conventional butter or plant-based butter can be used.
  • Cornstarch: Arrowroot powder/starch, tapioca starch, or unflavored instant potato granules can replace cornstarch.


  1. Sear: Heat the oil to medium-high and sear the London Broil for 2-3 minutes on each side. Place it in the slow cooker.
  2. Whisk: Combine beef broth, rosemary, Worcestershire sauce, thyme, garlic, onion powder, and salt. Pour the mixture over the meat in the slow cooker. Place the butter on top of the meat and close the lid.
  3. Cook on Low: Let it cook on low for 8 hours until the meat is tender and almost falling apart.
  4. Rest Meat & Finish Gravy: Remove the roast from the slow cooker. Make a slurry with cornstarch and water in a small bowl. Whisk the slurry into the boiling liquid remaining in the slow cooker until thickened.
  5. Serve: Cut or shred the London Broil, then serve it over mashed potatoes. Top it with the gravy from the slow cooker and enjoy!

Searing London broil before putting it in the slow cooker.
Searing the second side of the London broil.
London broil liquid gravy ingredients whisked together in a bowl.
Pouring the gravy liquid over the seared London broil in the crock pot.
Pad of butter placed on top of the roast.
Thickening the gravy by adding a cornstarch slurry.

Tips & FAQ

Overhead shot of a white round plate with shredded slow cooker london broil, mashed potatoes, and herbed gravy.

Nutritional Info

This London Broil crockpot recipe is not only delicious but also quite healthy. With lean beef as the main ingredient, each serving contains just over 400 calories. This leaves plenty of room on your plate for creamy mashed potatoes and roasted veggies. Additionally, it packs a whopping 49 grams of protein, making it an excellent choice for those seeking a protein-rich meal. With only 9 grams of carbohydrates and 21 grams of fat, it’s also suitable for carb-conscious individuals. Beef is known to be a great source of iron, zinc, and B vitamins, making this dish wholesome, well-balanced, and nutritious.

Total nutritional content per serving:

  • Calories: 423
  • Total Fat: 21 grams
  • Protein: 49 grams
  • Sodium: 524 mg
  • Carbohydrates: 9 grams
  • Fiber: 0 grams

Please note that this nutritional information is an estimate and may vary based on the ingredients used.

Forkful of London broil with gravy with the remaining portion on a white plate with mashed potatoes in the background.

Pricing Info

Here’s a breakdown of the approximate cost to make this recipe:

  • 2 tbsp avocado oil: $0.55
  • 2 – 2 ½ lbs London Broil: $6.61
  • 1 cup low sodium beef broth: $0.82
  • 1 tbsp minced fresh rosemary: $0.40
  • 2 tsp Worcestershire sauce: $0.09
  • 2 tsp fresh thyme leaves: $0.17
  • 2 tsp minced garlic: $0.14
  • 1 tsp onion powder: $0.04
  • ½ tsp salt: $0.01
  • 2 tbsp unsalted grass-fed butter: $0.25
  • 3 tbsp cornstarch: $0.11

The total cost to make this recipe is approximately $9.19, which amounts to roughly $2.29 per serving.


Need ideas for what to serve alongside your crockpot London Broil? I recommend pairing it with potatoes as well as some delightful vegetable sides. Here are a few suggestions:

  • Dutch Oven Potatoes
  • Boursin Mashed Potatoes
  • Air Fryer Delicata Squash
  • Air Fryer Asparagus Recipe
  • Any of my Easy Vegetable Side Dishes!

Other Cold-Weather Ready Recipes


Tried this recipe? Please leave a ⭐⭐⭐⭐⭐ rating in the comments below! Your feedback is greatly appreciated!


If you try this recipe and love it, don’t forget to take a photo and tag me on Instagram. I’d love to see your versions! And feel free to rate it in the comment section below. Enjoy!

xoxo Megan

This article was prepared with the BDK Restaurant in mind. For more delicious recipes, visit BDK Restaurant.

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