How to BBQ London Broil in 5 Easy Steps
To BBQ London Broil in 5 easy steps, start by choosing a flank steak about an inch thick for rich flavor. This cut is perfect for grilling and soaks up marinades well. Marinate it overnight in a mix of soy sauce, garlic, and olive oil to tenderize and add deep flavor.
Next, preheat your grill to high heat, around 450-500°F. You want it hot to get a nice sear on the steak. Sear the steak for 1-2 minutes per side to lock in those juices before grilling it to medium-rare.
Once it’s cooked, let the steak rest for a few minutes to redistribute the juices. Then slice it against the grain for tender, flavorful bites.
Keep practicing these steps, and you’ll master every detail for perfect London Broil results!
Key Takeaways
- Choose a flank steak about 1 inch thick, USDA Choice or Prime grade for better flavor and marbling.
- Marinate the steak overnight in the refrigerator using a mixture of soy sauce, garlic, balsamic vinegar, olive oil, and seasonings.
- Preheat your grill to 450-500°F. Make sure to clean and oil the grates to ensure proper searing and prevent sticking.
- Grill the steak 6 minutes per side for medium-rare. Don’t forget to sear each side for 1-2 minutes to lock in those juices. Using a meat thermometer really helps here.
- Let the steak rest for 5 minutes before slicing. Then, slice thinly against the grain at a 45-degree angle for maximum tenderness.
Selecting the Right Cut of Meat

When choosing the right cut of meat for your BBQ London Broil, flank steak stands out as the best option because of its rich flavor and ideal texture. This cut of beef comes from the abdominal muscles, featuring a pronounced grain that you’ll notice as the grain runs across the meat.
For the best meat selection, pick flank steak that’s no thicker than 1 inch to ensure quick, high-heat grilling without sacrificing tenderness. Opt for USDA Choice or Prime grade to get excellent marbling, which boosts flavor and juiciness.
While flank steak is lean, proper marinate techniques enhance its tenderness, making it perfect for BBQ London Broil. Compared to top round, flank steak consistently delivers superior taste and texture.
Preparing and Marinating Your London Broil

Choosing the right cut of meat sets the stage for a flavorful London Broil, but how you prepare and marinate it will truly bring out its best qualities.
The right cut and marinade unlock the full flavor potential of your London Broil.
To properly marinate your London Broil, follow these steps for ideal results:
- Combine marinade ingredients like soy sauce, garlic, balsamic vinegar, olive oil, Worcestershire, and Italian seasoning. You can add honey or brown sugar for a sweet balance.
- Place the steak in a resealable plastic bag, ensuring even coverage of the marinade. Turn during marinating at least once to infuse flavors uniformly.
- Marinate in the refrigerator at 40°F or below, ideally overnight, to tenderize and preserve freshness.
Before grilling, remove the steak and discard excess liquid to prevent flare-ups and achieve a perfect sear. Easy, right? This method really helps your London Broil come out juicy and full of flavor every time.
Preheating and Setting Up the Grill

How do you get the perfect sear on your London Broil? Start by preheating your grill to a high heat of 450-500°F. Whether you’re using a gas grill or charcoal, make sure to set up direct heat zones—turn all burners on high for gas grills or arrange coals evenly for charcoal.
Clean your grill grates thoroughly, then oil grill grates to prevent sticking and promote those beautiful grill marks. Use a grill thermometer to confirm the grill temperature has reached the desired level before cooking.
Allow your grill to preheat for at least 10-15 minutes; this guarantees the temperature stabilizes and your London Broil will sear properly once it hits the hot, oiled grill grates. That way, you’re all set for a great grilling session!
Grilling Your London Broil to Perfection
Once your grill reaches the ideal high heat of 450-500°F, you’ll want to sear your London Broil for 1-2 minutes per side. This helps lock in the juices and creates those appealing grill marks.
After searing, here’s what you do for perfect grilling:
- Grill the steak for about 6 minutes per side for medium-rare. You might need to adjust the time depending on how thick your steak is.
- Use a meat thermometer to check the internal temperature. Aim for 130-135°F to get that perfect doneness.
- And don’t forget, your marinade isn’t just for flavor—it also helps tenderize the meat. So definitely don’t skip marinating before you grill!
Resting and Slicing for Maximum Tenderness
Although it’s tempting to dig right in, you should let your London Broil rest for at least 5 minutes after grilling. This resting period allows the juices to redistribute throughout the meat, ensuring each bite stays moist and full of flavor.
When it’s time to slice, cut against the grain at a 45-degree angle. Doing so shortens the muscle fibers, increasing tenderness and making the meat easier to chew.
Use a sharp knife to make clean, precise slices about ⅛ to ¼ inch thick. Proper resting and slicing work together to prevent dryness and toughness, preserving the meat’s texture and enhancing your overall dining experience.
Conclusion
Now that you know how to BBQ London broil in five easy steps, you’re ready to impress. Imagine hosting a summer cookout where your perfectly grilled, tender London broil steals the show—just like Jake did last weekend. He earned rave reviews from his friends!
Remember, the key is in the marinade and resting time. These two steps really make a difference in flavor and tenderness.
Follow these tips, and your next BBQ will be a delicious success every time! Mastering how to BBQ London broil not only boosts your grilling skills but also guarantees juicy, flavorful results that everyone will love. So fire up that grill, marinate well, and enjoy the best London broil you’ve ever made!