Name: Korean Flank Steak
Prep time: 15 min
Cook time: 10 min
Total time: 55 min
Cuisine: Korean Fusion
Ingredients: 1 1/2 pounds flank steak; 1/3 cup soy sauce; 1/4 cup cola; 2 tablespoons brown sugar; 4 garlic cloves minced; 1 tablespoon fresh ginger grated; 2 tablespoons vegetable oil; 1 tablespoon sesame oil; 1/2 teaspoon black pepper; 1 cup fresh cilantro chopped; 1/2 cup fresh basil chopped; 3 green onions sliced; 2 tablespoons lime juice; 1 tablespoon rice vinegar; 1/3 cup olive oil; 1 tablespoon sesame seeds

Jump to Recipe

Korean Flank Steak brings together bold marinade flavors and quick grilling for a juicy, satisfying meal. This recipe highlights tender beef infused with sweet and savory notes, then finished with a bright Asian chimichurri that adds freshness and balance. Whether you plan a casual cookout or a weeknight dinner, this dish delivers strong flavor with simple steps. Plus, with minimal prep and fast cooking, Korean Flank Steak fits perfectly into any summer grilling routine while keeping things exciting and approachable.

Story

I first made Korean Flank Steak during a backyard gathering when I wanted something different from the usual grilled beef options. Instead of classic seasoning, I chose a Korean-inspired marinade that created a rich, slightly sweet taste. As the steak hit the grill, the aroma instantly set the tone for the evening. Then, I added a fresh herb topping inspired by a fusion recipe, and the combination worked beautifully. Since then, Korean Flank Steak has become a regular favorite because it cooks quickly, slices easily, and always impresses guests with its bold flavor and juicy texture.

Ingredients

1 ½ pounds flank steak
⅓ cup soy sauce
¼ cup cola
2 tablespoons brown sugar
4 garlic cloves, minced
1 tablespoon fresh ginger, grated
2 tablespoons vegetable oil
1 tablespoon sesame oil
½ teaspoon black pepper
1 cup fresh cilantro, chopped
½ cup fresh basil, chopped
3 green onions, sliced
2 tablespoons lime juice
1 tablespoon rice vinegar
⅓ cup olive oil
1 tablespoon sesame seeds

Step-by-Step Instructions

Preparing the Ingredients

Trim any excess fat from the flank steak, then lightly pierce the surface with a fork to help the marinade absorb. In a bowl, combine soy sauce, cola, brown sugar, garlic, ginger, vegetable oil, sesame oil, and black pepper, then mix until smooth. Place the steak in a resealable bag and pour the marinade over it, making sure every part gets coated evenly. Seal the bag and refrigerate for at least 30 minutes so the flavors soak into the meat.

Cooking Instructions

Preheat your grill to high heat, then lightly oil the grates to prevent sticking. Remove the steak from the marinade and let any excess drip off before placing it on the grill. Cook for 4 to 5 minutes per side, depending on thickness, until the steak reaches your preferred doneness. After grilling, transfer the steak to a cutting board and let it rest for 10 minutes, then slice it thinly against the grain. Meanwhile, mix cilantro, basil, green onions, lime juice, rice vinegar, olive oil, and sesame seeds to create the chimichurri, then spoon it over the sliced steak before serving.

Tips for Perfect Results

Common Mistakes to Avoid

Avoid overcooking the steak because flank steak becomes tough when cooked too long. Do not skip the resting step since it helps retain juices inside the meat. Also, slicing with the grain instead of against it will result in chewy bites, so always cut at an angle across the fibers. Finally, avoid using low heat on the grill because high heat creates a better sear and keeps the inside tender.

Pro Tips for Better Flavor

For deeper flavor, marinate the steak longer when time allows, as this builds a richer taste throughout the meat. Toast the sesame seeds before adding them to the sauce to bring out a nutty aroma. Additionally, use fresh herbs for the chimichurri because they provide a bright contrast to the savory beef. A squeeze of extra lime juice right before serving also adds a clean finish that balances the dish.

Serving and Storage

How to Serve

Serve Korean Flank Steak sliced thin with a generous spoonful of chimichurri on top. Pair it with rice, grilled vegetables, or a light salad for a complete meal. This dish also works well in tacos, wraps, or lettuce cups, making it flexible for different occasions and easy to enjoy in both casual and more refined settings.

How to Store Leftovers

Store leftover steak in an airtight container in the refrigerator for up to three days. Keep the chimichurri separate to maintain its freshness. When reheating, warm the steak gently in a skillet over medium heat to avoid drying it out. Alternatively, enjoy leftovers cold in salads or sandwiches for a quick meal the next day.

Conclusion

Korean Flank Steak offers a delicious balance of bold marinade flavors and fresh herb brightness, making it a standout option for any meal. With simple ingredients and quick cooking time, this recipe fits easily into busy schedules while still delivering impressive results. Try it once, and it will likely become a regular favorite in your rotation.

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Frequently Asked Questions

How long should I marinate Korean Flank Steak?

Marinate Korean Flank Steak for at least 30 minutes, but longer times, like 2 to 4 hours, will create deeper flavor and more tender meat. However, avoid marinating overnight because the texture can change too much.

Can I cook Korean Flank Steak without a grill?

Yes, you can cook Korean Flank Steak in a grill pan or cast-iron skillet over high heat. The key is to maintain strong heat so the meat sears properly and stays juicy inside.

What can I use instead of flank steak?

If flank steak is not available, you can use skirt steak or flat iron steak as alternatives. These cuts also respond well to marinades and cook quickly over high heat.