Amazing Alton Brown London broil: 1 juicy steak

October 18, 2025
Written By Leo Grant

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Alright, let’s talk steak! If you’re dreaming of a grill-ready, super-flavorful London broil that tastes like it came straight out of a TV kitchen—but is actually totally doable for a weeknight—you’ve landed in the right spot. This recipe, inspired by the brilliant Alton Brown, is all about getting that juicy, tender steak with a killer marinade and the *right* way to slice it. Seriously, it transforms the whole dinner! Here at Dishicious, we’re all about making good food happen without making a huge fuss. Think of it like a project: we’ve streamlined this classic, focusing on what really matters for incredible flavor and that perfect texture, so you can actually relax and enjoy your dinner. It’s E-E-A-T in action—Efficiency, Ease, and Amazing Taste, all thanks to a little bit of smart cooking strategy. You can read more about our philosophy here.

Why You’ll Love This Alton Brown London Broil Recipe

It’s ridiculously easy to whip up, even on a busy weeknight. The marinade packs a serious flavor punch that makes the steak sing. Perfect for summer BBQs, Father’s Day, or just a fancy-ish weeknight treat. You get that amazing, juicy steak texture without all the fuss. Guaranteed delicious results, just like Leo designed it!

Ingredients for Your Marinated London Broil

Alright, let’s get down to business with what you’ll need for this flavor-packed steak. It’s pretty straightforward, and honestly, gathering these is half the fun!

  • 1 London broil steak (about 2 pounds) – Look for a nice, even cut!
  • 1/2 cup soy sauce – For that savory depth.
  • 1/4 cup olive oil – Good quality makes a difference!
  • 1/4 cup red wine vinegar – Gives it a nice tang.
  • 2 tablespoons Worcestershire sauce – The secret umami powerhouse.
  • 1 tablespoon Dijon mustard – Adds a little zing.
  • 3 cloves garlic, minced – Fresh garlic is a must!
  • 1 teaspoon black pepper – Freshly cracked if you’ve got it.
  • 1 teaspoon dried thyme – Earthy and lovely.
  • 1/2 teaspoon red pepper flakes (optional) – If you like a little heat, add this in!

How to Prepare Your Alton Brown London Broil

Okay, so here’s where the magic happens! It’s all about a little prep, a bit of patience (which Leo Grant is all about, right? Think smart project management for your kitchen!), and then BAM – dinner is served. We’re going to marinate this beauty, get it perfectly broiled, and then slice it up so it’s melt-in-your-mouth tender. Don’t worry, it’s way easier than it sounds!

Creating the Perfect Steak Marinade

First things first, let’s build those amazing flavors. Grab a medium bowl and get ready to get whisking! Combine the soy sauce, olive oil, that zippy red wine vinegar, the all-important Worcestershire sauce, Dijon mustard, minced garlic, black pepper, and dried thyme. If you’re feeling bold, toss in those red pepper flakes for a little kick. Whisk it all together until it’s nicely blended – you want everything married together beautifully.

Marinating Your London Broil Steak

Now, let’s give that steak a flavor bath! You can use a sturdy zip-top bag or a shallow dish, whatever works for you. Place your London broil in there and pour that gorgeous marinade all over it. Make sure every nook and cranny of the steak is coated. Then, pop it in the fridge. You can go for at least 4 hours, but trust me, letting it marinate overnight is where the real flavor party happens. It really lets all those yummy ingredients soak in deep.

Broiling the Steak to Perfection

Time to get that broiler screaming hot! We want high heat here, so turn it all the way up. Take your steak out of its marinade – and discard that used marinade, please! – and pat the steak really dry with paper towels. This helps get a nice sear. Lay the steak on your broiler pan. Now, here’s the deal: broil it for about 5-7 minutes per side for a perfect medium-rare. If you like it more or less done, adjust the time, but seriously, grab a meat thermometer to be sure. This is how you get it just right every single time, no guessing!

Resting and Slicing Your Juicy Flank Steak

This next step is SO important, you guys. Once it’s out of the broiler, let that steak rest for a good 10 minutes. No peeking, no slicing early! This is crucial for keeping all those juices locked inside, making it super tender and flavorful. After its little spa break, slice it thinly. And here’s the golden rule: slice it AGAINST the grain. You’ll see the lines of the muscle fibers; cut across those, not with them. Do this, and you’ll have the most tender, juicy flank steak you’ve ever had. It’s a game-changer!

Tips for an Easy Steak Dinner

Leo Grant’s whole idea behind Dishicious is making great meals achievable, right? So, for this London broil, think of it like streamlining—cutting out the fluff and focusing on what *really* delivers. First off, pick a nice, even steak for the best broiling experience. Don’t skimp on preheating that broiler; it needs to be HOT before the steak even thinks about going in. And honestly, if you’re thinking about meal planning for the week, this steak is a lifesaver, especially if you’re exploring options like gluten-free meal delivery for specific dietary needs. Remember to always discard used marinade; it’s a food safety thing and keeps your steak tasting fresh, not funky.

Ingredient Notes and Substitutions

So, you’ve got your recipe, but maybe you’re missing one little thing or want to tweak it? No worries at all! That’s the beauty of cooking, right? If you don’t have red wine vinegar, apple cider vinegar works in a pinch for that tangy kick. And if Dijon isn’t your jam, a little bit of yellow mustard or even whole grain mustard can add a nice bite. For the garlic, if you’re really in a bind, garlic powder can work, but honestly, fresh minced garlic is king here. Don’t stress too much, these are just guides to help!

Serving Suggestions for Your Alton Brown London Broil

Now that you’ve got this amazing London broil, what should you serve with it? For a truly classic steakhouse vibe, you can’t go wrong with some creamy mashed potatoes or a simple Caesar salad. If you’re feeling like something lighter for a summer evening, grilled asparagus or a fresh corn and tomato salad would be fantastic. And of course, don’t forget some crusty bread to sop up any extra marinade!

Storage and Reheating Instructions

Got leftovers? Lucky you! Let your amazing London broil cool down completely before you stash it. Wrap it up tightly in plastic wrap or pop it into an airtight container. It’ll keep in the fridge for about 3 days. When you’re ready to reheat, the best way to keep it from drying out is to do it gently. Thinly slice it and warm it up for just a minute or two in a skillet over low heat, or even pop it in the microwave for short bursts. Careful not to overcook it again!

Frequently Asked Questions About London Broil

Got questions about this amazing steak? I’ve got you covered! It’s all about making things simple and delicious here at Dishicious, so let’s tackle some of those common queries to make sure your Alton Brown London broil experience is just perfect. You can always check out our privacy policy if you have any concerns about how we handle information.

What is the best way to cook London broil?

Honestly, for this recipe, broiling is hands-down the best way to go! It gets that super high heat needed to cook it quickly and give it a nice crust, just like Alton Brown would do. We want that lovely sear on the outside while keeping it juicy inside.

How long should London broil marinate?

You want to give that steak a good soak! We recommend at least 4 hours in the fridge, but for maximum flavor, letting it marinate overnight—like a full 12-24 hours—really makes a difference. It lets all those amazing marinade flavors sink deep into the meat.

How do I slice London broil against the grain?

This is super important for tenderness! Look closely at the steak, and you’ll see muscle fibers running in one direction. You want to slice your steak *across* those lines, perpendicular to them, not parallel. Cut thin slices this way and you’ll end up with the most tender, juicy flank steak you’ve ever bitten into. Trust me on this one!

Estimated Nutritional Information

Now, let’s talk numbers! These are just estimates, of course, since everyone’s steak size or specific ingredients might vary a tad. But based on our recipe for this amazing Alton Brown London broil, you’re looking at something around 350 calories per serving (which we figure is about a 4 oz portion). You’ll get a good dose of protein, around 35g, and about 20g of fat. It’s a satisfying meal that’s totally worth it!

Share Your Alton Brown London Broil Creation

Did you make this incredible Alton Brown London broil? We’d absolutely LOVE to hear how it turned out! Please share your results, leave a comment below telling us what you thought, or even give it a star rating. Your feedback is super helpful and totally makes our day! Got questions or pics? Feel free to reach out and connect with us!

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Alton Brown’s London Broil

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A juicy and flavorful London broil recipe inspired by Alton Brown, perfect for a summer dinner.

  • Author: leogrant
  • Prep Time: 15 min
  • Cook Time: 15 min
  • Total Time: 4 hr 30 min
  • Yield: 6 servings 1x
  • Category: Dinner
  • Method: Broiling
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

Scale
  • 1 London broil steak (about 2 pounds)
  • 1/2 cup soy sauce
  • 1/4 cup olive oil
  • 1/4 cup red wine vinegar
  • 2 tablespoons Worcestershire sauce
  • 1 tablespoon Dijon mustard
  • 3 cloves garlic, minced
  • 1 teaspoon black pepper
  • 1 teaspoon dried thyme
  • 1/2 teaspoon red pepper flakes (optional)

Instructions

  1. In a bowl, whisk together soy sauce, olive oil, red wine vinegar, Worcestershire sauce, Dijon mustard, minced garlic, black pepper, thyme, and red pepper flakes if using.
  2. Place the London broil steak in a resealable plastic bag or shallow dish. Pour the marinade over the steak, ensuring it is fully coated.
  3. Marinate in the refrigerator for at least 4 hours, or preferably overnight.
  4. Preheat your broiler to high.
  5. Remove the steak from the marinade and discard the marinade. Pat the steak dry with paper towels.
  6. Place the steak on a broiler pan.
  7. Broil for 5-7 minutes per side for medium-rare, or adjust time to your desired doneness. Use a meat thermometer to check for accuracy.
  8. Remove the steak from the broiler and let it rest for 10 minutes before slicing.
  9. Slice the steak thinly against the grain.

Notes

  • For best results, slice the steak against the grain.
  • Serve with your favorite sides for a complete meal.
  • Consider using this recipe as part of your meal planning for an easy weeknight dinner.

Nutrition

  • Serving Size: 4 oz
  • Calories: 350
  • Sugar: 3g
  • Sodium: 700mg
  • Fat: 20g
  • Saturated Fat: 5g
  • Unsaturated Fat: 15g
  • Trans Fat: 0g
  • Carbohydrates: 5g
  • Fiber: 1g
  • Protein: 35g
  • Cholesterol: 100mg

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