Broiling London Broil in the oven delivers a flavorful, tender steak with a beautiful crust when prepared and cooked precisely under high, direct heat.
London Broil, often a lean cut like flank or top round, benefits immensely from the intense, direct heat of your oven’s broiler. This method quickly sears the exterior, locking in juices and developing a savory crust, while cooking the interior to your desired doneness, making it a fantastic choice for a weeknight meal or a casual gathering.
Broiled London Broil Recipe
- Prep Time: 15 minutes (plus 2-8 hours marinating)
- Cook Time: 10-18 minutes
- Yield: 4-6 servings
Ingredients:
- 1.5-2 lb London Broil (flank or top round steak), 1.5 to 2 inches thick
- 2 tablespoons olive oil, plus more for pan
- 1 tablespoon soy sauce or Worcestershire sauce
- 1 teaspoon dried garlic powder
- 1 teaspoon dried onion powder
- 1/2 teaspoon black pepper
- 1/2 teaspoon salt, or to taste
- Optional Marinade: 1/4 cup olive oil, 2 tablespoons red wine vinegar, 1 tablespoon soy sauce, 1 clove minced garlic, 1/2 teaspoon dried oregano, salt and pepper to taste
Instructions:
- Marinate (Optional but Recommended): In a shallow dish or resealable bag, combine the steak with your chosen marinade ingredients. Ensure the steak is fully coated. Refrigerate for a minimum of 2 hours, and preferably 4-8 hours. For tougher cuts, you can marinate up to 12 hours, but avoid over-marinating with acidic ingredients as it can make the meat mushy.
- Bring to Room Temperature: About 30-60 minutes before cooking, remove the marinated steak from the refrigerator. This helps the meat cook more evenly.
- Preheat Broiler and Prepare Pan: Position an oven rack 4-6 inches from the broiler element. Line a broiler pan or a baking sheet with foil for easier cleanup, and place a wire rack on top. Lightly oil the wire rack. Preheat your oven’s broiler on high. Allow the broiler to preheat for at least 10-15 minutes to reach its maximum temperature.
- Pat Dry and Season: Remove the steak from the marinade (discarding any leftover marinade). Pat the steak thoroughly dry with paper towels. A dry surface is crucial for achieving a good sear. If not marinating, rub the steak with 2 tablespoons of olive oil, then season generously with salt, pepper, garlic powder, and onion powder on both sides.
- Broil First Side: Place the seasoned London Broil on the prepared wire rack. Carefully slide the pan into the preheated oven, directly under the broiler element. Broil for 5-8 minutes on the first side, depending on the thickness of your steak and desired doneness. Watch closely to prevent burning; broilers can vary in intensity.
- Flip and Broil Second Side: Using tongs, carefully flip the steak. Broil for another 5-8 minutes on the second side.
- Check Internal Temperature: Begin checking the internal temperature with an instant-read meat thermometer after about 10 minutes total cooking time for a 1.5-inch thick steak. Insert the thermometer into the thickest part of the meat, avoiding any bone or fat pockets. Target temperatures are 125-130°F for rare, 130-135°F for medium-rare, and 135-140°F for medium. Remember that the temperature will rise by 5-10 degrees during resting.
- Rest the Steak: Once the steak reaches your desired temperature, remove the pan from the oven. Transfer the London Broil to a cutting board and tent it loosely with foil. Allow the steak to rest for at least 5-10 minutes. This critical step allows the juices to redistribute throughout the meat, resulting in a more tender and juicy steak.
- Slice and Serve: After resting, slice the London Broil thinly against the grain. Serving it immediately ensures the best flavor and texture.
Understanding London Broil: What it is and why broiling works
The term “London Broil” refers more to a cooking method than a specific cut of beef. Historically, it described broiled or grilled flank steak, but today it often encompasses other lean, large, relatively flat cuts like top round steak or sirloin tip. These cuts are known for their robust beefy flavor but can be tough if not prepared and cooked correctly.
Broiling is an ideal cooking method for these cuts because it utilizes intense, direct radiant heat, similar to grilling. This high heat quickly cooks the exterior, initiating the Maillard reaction which creates a rich, savory crust. The rapid cooking time also minimizes moisture loss, helping to keep the lean meat from drying out, which is a common pitfall with these cuts.
Essential Prep for Broiling London Broil
Proper preparation is the foundation for a tender and flavorful London Broil. Each step contributes to the final texture and taste.
Selecting Your Cut and Thickness
When choosing your London Broil, aim for a piece that is between 1.5 to 2 inches thick. This thickness allows for a good sear on the outside while maintaining a juicy, less-than-well-done interior. Thinner cuts risk overcooking quickly, while much thicker cuts might require a longer broil time that could lead to a burnt exterior before the inside reaches desired doneness.
The Power of Marinating
Marinating is a transformative step for London Broil, especially for leaner, tougher cuts like flank or top round. A good marinade serves several purposes: it tenderizes the meat, infuses it with flavor, and adds moisture. Acidic components such as vinegar, citrus juice, or wine help to break down tough muscle fibers. Oils contribute moisture and help distribute fat-soluble flavors. Aromatics like garlic, herbs, and spices add depth to the beef’s natural flavor.
Marinate your London Broil for at least 2 hours to allow flavors to penetrate, but for optimal tenderization, aim for 4-8 hours. Avoid marinating for longer than 12 hours, especially with highly acidic marinades, as this can break down the meat too much, resulting in a mushy texture rather than tender.
Before broiling, always pat the marinated steak thoroughly dry with paper towels. Excess moisture on the surface will steam the meat instead of searing it, preventing that desirable browned crust from forming.
Mastering How To Broil London Broil In Oven for Tenderness and Flavor
The actual broiling process is quick and requires attention. Setting up your oven and managing the heat are key to success.
Setting Up Your Broiler for Success
Start by positioning your oven rack. For most London Broil cuts, placing the rack 4-6 inches from the broiler element provides the ideal distance. This allows the intense heat to sear the surface without burning it too quickly. For thicker cuts (closer to 2 inches), you might move the rack slightly lower to ensure the interior cooks before the exterior over-browns. For thinner cuts, a slightly higher position can create a faster, more intense sear.
Always preheat your broiler for at least 10-15 minutes before placing the steak inside. This ensures the broiler element and the oven cavity are screaming hot, which is essential for an immediate, effective sear. Use a broiler pan with a rack, or a wire rack set over a foil-lined baking sheet. The rack allows air to circulate around the meat and lets drippings fall away, preventing the steak from stewing in its own juices.
The Broiling Process
Once your broiler is preheated and your steak is prepped, place it on the hot rack. Broil the first side for 5-8 minutes. The exact time depends on your broiler’s intensity and the steak’s thickness. Observe the steak closely; you want a deep brown crust, not black char. If it browns too quickly, you can slightly lower the rack for the second side.
Carefully flip the steak using tongs and broil the second side for another 5-8 minutes. Again, monitor for browning. The goal is an even crust on both sides. For a 1.5-inch thick steak aiming for medium-rare, total broiling time will typically be between 10-14 minutes.
| Component Type | Purpose | Examples |
|---|---|---|
| Acid | Tenderizes, adds tang | Red wine vinegar, lemon juice, soy sauce, Worcestershire sauce |
| Oil | Moisture, flavor distribution | Olive oil, vegetable oil, avocado oil |
| Aromatics/Seasoning | Adds flavor depth | Garlic, onion, herbs (rosemary, thyme, oregano), black pepper |
Achieving the Perfect Doneness: Temperatures and Techniques
Precision is paramount when cooking steak to a specific doneness. Relying solely on visual cues can be misleading, especially with broiling’s rapid cook times.
Using a Meat Thermometer
An instant-read meat thermometer is your most reliable tool for achieving perfect doneness. Insert the thermometer into the thickest part of the steak, ensuring it does not touch any bone or fat, which can give an inaccurate reading. The internal temperature will continue to rise by 5-10 degrees Fahrenheit after the steak is removed from the heat (this is called carryover cooking), so it’s important to pull the steak off the broiler a few degrees below your target.
For safe consumption, the USDA recommends cooking whole cuts of beef to a minimum internal temperature of 145°F (63°C), followed by a three-minute rest. However, many steak enthusiasts prefer lower temperatures for a more tender and juicy result, understanding the risks associated with undercooked meat.
Doneness Levels and Target Temperatures (Before Resting)
- Rare: 125-130°F (52-54°C) – Cool red center.
- Medium-Rare: 130-135°F (54-57°C) – Warm red center. This is often the preferred doneness for London Broil due to its lean nature.
- Medium: 135-140°F (57-60°C) – Warm pink center.
- Medium-Well: 140-145°F (60-63°C) – Slightly pink center.
- Well-Done: 145°F+ (63°C+) – Little to no pink. While safe, this can result in a tougher, drier London Broil due to its lean composition.
| Doneness Level | Internal Temperature (°F) | Visual Description |
|---|---|---|
| Rare | 125-130°F | Cool red center |
| Medium-Rare | 130-135°F | Warm red center |
| Medium | 135-140°F | Warm pink center |
The Art of Resting and Slicing
These final steps are just as crucial as the cooking itself for ensuring a tender, juicy steak. Skipping them can undo all your careful cooking.
Why Resting is Non-Negotiable
When meat cooks, the muscle fibers contract, pushing the internal juices towards the center. If you slice into the steak immediately after removing it from the broiler, these juices will escape onto your cutting board, leaving you with a drier steak. Resting allows the muscle fibers to relax and reabsorb these juices, redistributing them evenly throughout the meat. This results in a significantly more tender and juicy eating experience.
For London Broil, a rest of 5-10 minutes is sufficient. Transfer the steak to a clean cutting board and tent it loosely with aluminum foil. This keeps the steak warm while it rests without creating steam that would soften the crust.
Slicing Against the Grain
London Broil cuts like flank steak or top round have long, visible muscle fibers, often referred to as “the grain.” Slicing with the grain will result in long, tough strands of meat that are difficult to chew. To maximize tenderness, it is absolutely essential to slice the steak thinly against the grain.
To identify the grain, look closely at the cooked steak on your cutting board. You will see parallel lines running across the meat. Position your knife perpendicular to these lines, then slice the steak into thin pieces, typically about 1/4 to 1/2 inch thick. This shortens the muscle fibers, making each bite much more tender and enjoyable.
Flavor Enhancements and Serving Suggestions
A perfectly broiled London Broil is delicious on its own, but a few additions can elevate the experience even further.
Consider finishing your steak with a pat of compound butter (garlic-herb, blue cheese, or chili-lime) that melts over the warm slices, adding richness and aromatic notes. A fresh chimichurri sauce, with its vibrant herbs, garlic, and vinegar, provides a bright, zesty counterpoint to the rich beef. A simple pan sauce made from the drippings, a splash of red wine or broth, and a knob of butter can also add a sophisticated touch.
For side dishes, roasted asparagus, garlic mashed potatoes, or a crisp green salad with a vinaigrette dressing pair beautifully. The lean nature of London Broil makes it versatile for serving alongside heartier starches or lighter vegetables.
Troubleshooting Common Broiling Challenges
Even seasoned cooks can encounter issues, but understanding common problems helps you adjust and achieve perfect results.
- Uneven Cooking: If one part of your steak is cooking faster than another, your broiler element might have hot spots. Try rotating the pan halfway through the cooking process. Ensure the steak is of uniform thickness; if not, you can gently pound thicker areas to even them out before cooking.
- Burning vs. Browning: If the exterior is charring before the interior reaches doneness, the steak is too close to the broiler element. Lower the oven rack by an inch or two for your next attempt. Conversely, if it’s not browning enough, move it closer.
- Dry or Tough Steak: The most common culprits are overcooking and not resting the meat. Always use a meat thermometer and pull the steak off the heat a few degrees before your target temperature. Resting allows the juices to redistribute, preventing dryness. Additionally, ensure you slice against the grain to maximize tenderness.
- Smoking Oven: Drippings falling onto the hot oven floor can cause smoke. Always use a broiler pan with a rack, or a foil-lined baking sheet with a rack, to catch these drippings. A clean oven also helps reduce smoke.
References & Sources
- Food Safety and Inspection Service. “fsis.usda.gov” The USDA provides comprehensive guidelines for safe food handling and cooking temperatures for various meats.
