When you think of a juicy, mouthwatering cut of beef that practically melts in your mouth, London broil immediately comes to mind. This dish is not just a meal; it’s an experience! Imagine slicing into perfectly marinated meat, releasing a tantalizing aroma that makes your stomach growl louder than your neighbor’s lawnmower. The magic begins with the marinade, transforming this humble cut into something truly extraordinary.

The first time I made London broil was during a summer barbecue with friends. I was nervous, thinking they might judge my culinary skills, but as soon as the sizzling meat hit the grill, everyone gathered around like moths to a flame. The laughter and chatter filled the air, and by the end of the evening, there were nothing but empty plates and satisfied smiles. That’s the power of a great London broil marinade!
Why You'll Love This Recipe
- This London broil marinade is easy to whip up, making meal prep a joy rather than a chore
- Its rich flavors elevate any gathering, enticing even picky eaters to come back for seconds
- The vibrant colors and enticing aromas make it visually appealing on any dinner table
- Perfect for grilling but versatile enough for baking or pan-searing
Sharing this recipe with friends always brings back fond memories of laughter and great food.
Essential Ingredients
Here’s what you’ll need to make this delicious dish:
London Broil (Flank Steak): Choose a well-marbled flank steak for tenderness and flavor; it absorbs marinades beautifully.
Soy Sauce: Use low-sodium soy sauce to control saltiness while enhancing umami flavors.
Red Wine Vinegar: This adds a tangy kick; opt for a quality vinegar to complement the beef’s richness.
Garlic Cloves: Fresh garlic amps up flavor; use at least three cloves minced finely for maximum impact.
Brown Sugar: A touch of sweetness balances savory notes; dark brown sugar works best for depth.
Dijon Mustard: Adds complexity; choose smooth Dijon for an even distribution throughout the marinade.
Olive Oil: A splash keeps the meat moist while grilling; extra virgin adds flavor as well.
Fresh Herbs (Thyme or Rosemary): Fresh herbs lend brightness; chop them finely for better infusion into the marinade.
The full ingredients list, including measurements, is provided in the recipe card directly below.

How to Make London Broil Marinade
Create the Marinade: In a medium bowl, whisk together soy sauce, red wine vinegar, minced garlic, brown sugar, Dijon mustard, olive oil, and fresh herbs until well combined. The mixture should be aromatic and slightly thick.
Add the Meat: Place your flank steak in a large resealable plastic bag or shallow dish. Pour the marinade over it, ensuring every surface is coated. Seal tightly or cover if using a dish.
Marinate Time!: Refrigerate your steak for at least two hours or overnight if possible. This allows those delicious flavors to penetrate deeply into the meat.
Prepare to Grill: Preheat your grill to high heat (around 450°F). Make sure it’s clean and lightly oiled to prevent sticking.
Grill it Up!: Remove steak from marinade (discarding excess) and place it on the grill. Cook for about 4-6 minutes on each side for medium-rare doneness. Look for beautiful grill marks!
Rest and Slice: Let the meat rest for about 10 minutes after grilling before slicing against the grain into thin strips. This keeps it tender and juicy – trust me on this one!
Enjoying your grilled London broil served with veggies or in sandwiches will leave everyone asking for more!
You Must Know
- This London broil marinade elevates your steak to new heights, infusing it with mouthwatering flavors
- Marinating overnight enhances tenderness and taste, ensuring a juicy experience
- The combination of soy sauce and garlic creates an aromatic allure that will have your guests begging for the recipe
Perfecting the Cooking Process
Start by marinating your steak for at least four hours, but overnight is best. Sear it on high heat, then finish in a preheated oven for perfect tenderness.
Add Your Touch
Feel free to swap out soy sauce for tamari for a gluten-free option, or add fresh herbs like rosemary to enhance the flavor profile.
Storing & Reheating
Store leftover London broil in an airtight container in the fridge for up to three days. Reheat gently in a skillet over low heat to maintain moisture.
Chef's Helpful Tips
- To achieve that perfect London broil, always slice against the grain for tender bites
- Use a meat thermometer to ensure you hit that ideal medium-rare temperature
- Don’t rush the marination process; great flavors take time to develop!
Sharing my first experience cooking London broil was unforgettable; my friends devoured it and begged me to make it again!
FAQ
How long should I marinate London broil?
Marinating for at least four hours will yield impressive flavor, but overnight is best.
Can I use other cuts of beef?
While London broil is ideal, flank steak or skirt steak work well as alternatives.
What do I serve with London broil?
Pair it with roasted vegetables or a fresh salad for a balanced meal everyone will love.

London Broil Marinade Recipe
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- Author: Ann Foster
- Total Time: 27 minutes
- Yield: Serves 4
Description
Indulge in the mouthwatering flavors of London broil, a tender cut of beef expertly marinated to perfection. This recipe elevates flank steak with a rich blend of soy sauce, garlic, and fresh herbs, creating an unforgettable dish that’s perfect for grilling or roasting. Whether you’re hosting a summer barbecue or preparing a cozy family dinner, this London broil will impress everyone at the table.
Ingredients
- 1 lb flank steak (London broil)
- 1/4 cup low-sodium soy sauce
- 2 tbsp red wine vinegar
- 3 cloves garlic, minced
- 2 tbsp brown sugar
- 1 tbsp Dijon mustard
- 2 tbsp olive oil
- 1 tbsp fresh thyme or rosemary, chopped
Instructions
- In a medium bowl, whisk together the soy sauce, red wine vinegar, minced garlic, brown sugar, Dijon mustard, olive oil, and fresh herbs until well combined.
- Place the flank steak in a resealable plastic bag or shallow dish and pour the marinade over it. Ensure all surfaces are coated. Seal tightly or cover the dish.
- Marinate in the refrigerator for at least 4 hours or overnight for best results.
- Preheat your grill to high heat (about 450°F), ensuring it's clean and lightly oiled.
- Remove the steak from the marinade (discard excess) and grill for about 4-6 minutes on each side for medium-rare.
- Let the meat rest for 10 minutes before slicing against the grain into thin strips.
- Prep Time: 15 minutes
- Cook Time: 12 minutes
- Category: Main
- Method: Grilling
- Cuisine: American
Nutrition
- Serving Size: 4 oz (113g)
- Calories: 290
- Sugar: 3g
- Sodium: 680mg
- Fat: 14g
- Saturated Fat: 3g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 12g
- Fiber: 0g
- Protein: 30g
- Cholesterol: 70mg






