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Slow-cooked meals are everything we want at the end of a busy day: comforting, hearty, and brimming with flavor. Picture a tender cut of beef, lovingly marinated and simmered for hours until it practically falls apart at the touch of a fork. This is precisely what you can expect with this Slow Cooker London Broil recipe. Using the slow cooker transforms this traditionally tougher cut into something sublime and utterly mouthwatering, and if you’re like me, once you try it, you’ll wonder how you ever lived without it!

I remember the first time I made this dish; the aroma wafting through my kitchen had everyone asking, “What’s cooking?” The savory notes of soy sauce intertwined with balsamic vinegar and a touch of brown sugar fill your home with an inviting warmth. It’s a simple pleasure that makes everything feel a little brighter, whether it’s a chilly weeknight or a weekend gathering with friends. So, let’s delve into this delightful recipe and discover how easy it is to create a perfect dinner!

Why You’ll Love This Recipe

Simple & Quick: With just 15 minutes of prep, you can set it and forget it!
Irresistible Flavor: The marinade creates a rich, savory taste that elevates the entire dish.
Eye-Catching Appeal: The vibrant carrots and potatoes make for an impressive presentation.
Flexible Serving: Perfect for family dinners, potlucks, or meal prep for the week.
Diet-Friendly Options: Easily adaptable for gluten-free diets by using tamari instead of soy sauce.

Ingredients You’ll Need

2 pounds London broil: This cut of beef becomes incredibly tender when slow-cooked, making it the star of the dish.
¼ cup low-sodium soy sauce: Adds depth of flavor without too much salt. Tamari can be used as a gluten-free substitute.
1 tbsp. balsamic vinegar: Introduces a touch of sweetness and acidity balancing the rich flavors.
1 tbsp. Worcestershire sauce: Contributes umami notes, enhancing the beef experience.
1 ¾ cup beef broth: Essential for moistening the meat and vegetables. Opt for low-sodium for better control of saltiness.
1 tbsp. brown sugar: Sweetens the marinade and adds caramelization while cooking.
½ tsp. dried rosemary: Offers a fragrant, herbal undertone that complements the beef beautifully.
½ tsp. dried thyme: Another aromatic herb that adds complexity to the dish.
¼ tsp. black pepper: Elevates the overall flavor but can be adjusted to taste.
1 tbsp. olive oil: Used for searing the meat, adding richness and a lovely crust.
1 medium onion, sliced: Introduces sweetness and substance to the dish.
2 carrots, peeled and cut into chunks: Sweet, earthy, and hearty; they soak up the flavors as they cook.
2 potatoes, cut into chunks: Provide a filling, comforting base that pairs well with the meat.
4 garlic cloves: Infuses the dish with a robust, aromatic flavor.
1 tbsp. cornstarch, optional: If you like a thicker sauce, this will help achieve that silky texture.

How to Make Slow Cooker London Broil

Prepare the Marinade: In a medium bowl, whisk together ¼ cup low-sodium soy sauce, 1 tablespoon balsamic vinegar, 1 tablespoon Worcestershire sauce, ¾ cup of beef broth, 1 tablespoon brown sugar, ½ teaspoon dried rosemary, ½ teaspoon dried thyme, and ¼ teaspoon black pepper. Drizzling in 1 tablespoon of olive oil as you whisk helps bind the flavors.
Marinate the Beef: Place the London broil into a resealable plastic bag or a shallow dish and pour the marinade over it. Ensure it’s well-coated, seal the bag, or cover the dish, and refrigerate for at least 4 hours or up to overnight for maximum flavor infusion.
Sear the Meat: After marinating, heat a skillet over medium-high heat. Sear the London broil for 2-3 minutes on each side until browned. This step locks in the juices and enhances the flavor.
Load the Slow Cooker: Transfer the seared meat along with any remaining marinade to your slow cooker. Arrange sliced onion, carrots, potatoes, and garlic around the meat. This not only adds flavor but makes for a beautiful presentation too!
Add Beef Broth: Pour the remaining 1 cup of beef broth over everything. The liquid should come halfway up the side of the meat, ensuring it stays moist without being submerged.
Cook Low and Slow: Cover the slow cooker and set it to cook on low for 6-8 hours, or until the meat is fork-tender and easily shreds apart.
Rest and Slice: Once done, carefully remove the London broil from the slow cooker and let it rest for 10-15 minutes. Slice it against the grain for the most tender bites.
Make a Savory Sauce (Optional): If you like a thicker sauce, strain the cooking liquid into a saucepan. Mix 1 tablespoon of cornstarch with a few tablespoons of cold water to create a slurry. Stir this into the strained liquid and bring to a boil while stirring until thickened.
Serve & Enjoy: Serve the sliced London broil with the cooked vegetables and drizzle with the savory sauce. Every bite is a comforting experience, perfect for gathering around the dinner table.

Storing & Reheating

To store leftovers, allow them to cool and place them in an airtight container in the refrigerator for up to 3 days. If you’ve got a bit more than you’ll eat, freeze it in a freezer-safe container for up to 3 months. When it’s time to enjoy again, reheat in the microwave for about 2-3 minutes or on the stovetop over low heat until warmed through. Note that the texture of the vegetables may soften more, but the flavors still pack a punch!

Chef’s Helpful Tips

Avoid overcooking; check the meat around the 6-hour mark for the best texture.
For added flavor, use freshly minced garlic instead of cloves.
Consider adding other vegetables like bell peppers or green beans for variety.
If you prefer a more intense sauce, add additional herbs or spices as it cooks.
Make a day ahead for a quick reheat dinner, letting flavors develop overnight.

When it comes to comfort food, Slow Cooker London Broil stands out as a surefire winner. Not only is it incredibly simple to prepare, but it also delivers on taste and satisfaction in a way that makes each meal feel special. Don’t hesitate to experiment with the ingredients or even add your favorite veggies into the mix. This dish will surely become a cherished recipe in your collection.

Recipe FAQs

Can I use another cut of beef instead of London broil?

Yes! Cuts like flank steak or sirloin can also work well, but cooking times may vary. Ensure you check for doneness to achieve that tender texture.

How can I thicken the sauce without cornstarch?

If you prefer to avoid cornstarch, try simmering the cooking liquid longer until it reduces and thickens naturally. You could also mash some of the cooked potatoes into the sauce for added thickness.

What sides pair well with this dish?

Serving with crusty bread or over mashed potatoes can elevate the meal. Don’t forget a fresh salad to brighten things up and balance the richness!

Is this recipe gluten-free?

You can make this gluten-free by using tamari instead of soy sauce and ensuring the beef broth is gluten-free. Always check labels for hidden gluten in sauces.