This marinade transforms flank steak into a juicy, flavor-packed masterpiece with minimal effort.
I developed this method after years of testing to achieve the perfect balance of Italian herbs, garlic, and acidity that tenderizes while enhancing natural beef flavor.
The grilling technique ensures a caramelized crust outside while maintaining tender, rose-colored meat inside. Every bite delivers robust Mediterranean character.
Ready in under 30 minutes with most time spent marinating, this delivers restaurant-quality results for weeknight dinners or special occasions.
Ingredients for Italian Flank Steak
A robust selection of Mediterranean herbs and bold flavors transforms this beef into something extraordinary.
| Ingredient | Amount | Notes |
|---|---|---|
| Flank Steak 🥩 | 1 ½ lb | Whole piece, about 1/2-inch thick |
| Extra-Virgin Olive Oil 🫒 | ½ cup | For marinade and grilling |
| Red Wine Vinegar 🍷 | ¼ cup | For acidity and tenderizing |
| Soy Sauce 🥢 | 3 tbsp | Low-sodium preferred |
| Worcestershire Sauce 🍶 | 1 tbsp | Adds depth to marinade |
| Garlic Cloves 🧄 | 5 cloves | Minced for maximum flavor |
| Fresh Rosemary 🌿 | 2 tbsp | Finely chopped, stems removed |
| Fresh Thyme 🍃 | 2 tbsp | Leaves only, no stems |
| Dried Oregano 🌿 | 1 tbsp | Mediterranean variety preferred |
| Dijon Mustard 🟡 | 1 tbsp | For emulsifying marinade |
| Honey 🍯 | 1 tbsp | Balances acidity in marinade |
| Kosher Salt 🧂 | 1 tsp | Diamond Crystal preferred |
| Black Pepper 🌶️ | 1 tsp | Freshly ground for best results |
| Red Pepper Flakes 🔥 | ½ tsp | Adjust for heat preference |
The steak selection is critical for optimal results. Flank steak with good marbling and uniform thickness ensures even cooking and maximum tenderness. Source from Whole Foods or ButcherBox for premium quality. The fresh herbs should be vibrant and aromatic—wilted or browned leaves lack the necessary potency. For the olive oil, California Olive Ranch offers excellent extra-virgin options at most supermarkets.
No flank steak? Skirt steak works as a direct substitute with similar texture and flavor. Fresh out of herbs? Dried at one-third the amount, though fresh delivers superior brightness. For a gluten-free option, tamari replaces soy sauce seamlessly. The Worcestershire can be omitted, but adds a complex umami depth worth including if available.
Marinate the steak in a sealed container for up to 24 hours—never in aluminum, which can react with the acidity. The finished dish holds well at room temperature for 30 minutes before serving. Refrigerate leftovers promptly; they’ll keep for 4-5 days and reheat beautifully for sandwiches or salads.
Why You’ll Love This Recipe
- Minimal Effort: I mix the marinade in 5 minutes flat—olive oil, vinegar, soy, and Worcestershire do all the work.
- Deep, Tangy Bite: The red wine vinegar and soy sauce combo gives it that bold Italian punch I crave.
- Feeds the Crew: One flank steak serves my whole family, and honestly, it’s just as good sliced thin for sandwiches the next day.
- Budget Hero: Flank steak is cheaper than ribeye, but with this marinade, no one notices the difference.
Step-by-Step Instructions for Italian Flank Steak
Master these techniques to achieve perfectly marinated and juicy results every time.
Step 1: Prepare the Marinade with Aromatic Herbs
In a medium bowl, whisk together the 0.5 cup extra-virgin olive oil, 0.25 cup red wine vinegar, 3 tbsp soy sauce, and 1 tbsp Worcestershire sauce until fully combined. The vinegar and soy sauce create the ideal balance of acidity and umami for tenderizing the beef.
Add the 5 cloves garlic cloves (minced), 2 tbsp fresh rosemary, 2 tbsp fresh thyme, 1 tbsp dried oregano, 1 tbsp Dijon mustard, 1 tbsp honey, 1 tsp kosher salt, 1 tsp black pepper, and 0.5 tsp red pepper flakes. Whisk vigorously for 30 seconds until the marinade emulsifies and the herbs are evenly distributed. This ensures every bite of the flank steak absorbs maximum flavor.
Step 2: Marinate the Flank Steak for Optimal Tenderness
Place the 1.5 lb flank steak in a resealable plastic bag or shallow dish and pour the marinade over it. Turn the steak several times to ensure it is completely coated. The marinade should fully cover the steak to maximize contact with the meat.
Seal the bag or cover the dish and refrigerate for at least 4 hours, or preferably overnight for the most tender and flavorful result. The acidity in the vinegar and the enzymes in the mustard work together to break down the muscle fibers, ensuring a juicy outcome. Flip the steak once halfway through the marinating time for even flavor distribution.
Step 3: Grill to Juicy Perfection
Remove the flank steak from the marinade and let it sit at room temperature for 30 minutes before grilling. This step ensures even cooking throughout the steak. Discard the used marinade—it has been in contact with raw meat and should not be reused.
Preheat your grill to medium-high heat (about 400-450°F). Lightly oil the grates to prevent sticking. Place the steak on the grill and cook for 5-7 minutes per side for medium-rare, or until it reaches an internal temperature of 135°F. The steak should develop a rich, caramelized crust while remaining juicy inside.
Step 4: Rest and Slice Against the Grain
Transfer the grilled flank steak to a cutting board and tent loosely with aluminum foil. Let it rest for 10 minutes to allow the juices to redistribute throughout the meat. Skipping this step will result in a dry steak, as the juices will escape when sliced.
After resting, slice the steak thinly against the grain. Look for the natural lines running through the meat and cut perpendicular to them. This shortens the muscle fibers, making each bite tender and easy to chew. Serve immediately while still warm for the best texture and flavor.
Pro Tips For Making Italian Flank Steak
- Score the Steak: Make shallow cuts against the grain on both sides of the flank steak before marinating—this helps the olive oil, vinegar, and soy sauce penetrate deeper and makes slicing easier later.
- Marinate Long Enough: Give it at least 4 hours, but overnight is ideal. I learned this the hard way when my first attempt tasted more like warm vinegar than Italian flank steak.
- Sear Over High Heat: Crank your pan or grill to high heat and sear the steak for 3-4 minutes per side—this locks in juices and creates that perfect crust you want with this cut.
- Slice Against the Grain: After resting for 10 minutes, slice thinly against the grain. This shortens the muscle fibers and makes every bite tender, not chewy.
Make-Ahead Tips for Leftovers
Marinating Ahead
I always prep the marinade up to 24 hours ahead—it actually improves as the herbs meld overnight. Store it in a glass jar in the fridge until ready to use. This saves 15 minutes on cooking day. 💡
Overnight Marinating
The steak can marinate for up to 24 hours for maximum tenderness. Place it in a resealable bag to save space and ensure full coverage. Flip it once halfway through for even flavor distribution.
Pre-Grill Prep
Remove the steak from the fridge 1 hour before grilling to bring it to room temperature. This ensures even cooking. Pat it dry with paper towels for a better sear on the grill.
Partial Cooking
For meal prep, grill the steak to medium-rare (130°F internal), then slice and store. Reheat slices in a skillet with 1 tbsp olive oil for 2-3 minutes until warmed through.
This method keeps the meat juicy without overcooking. 🔥
Storage Tips
Store cooked steak in airtight containers for up to 4 days in the fridge. For longer storage, freeze slices in a single layer first, then transfer to a freezer bag for up to 3 months.
Nutrition Facts
Frequently Asked Questions
What’s the best way to slice flank steak?
Always slice against the grain into thin strips. Look for the muscle fibers running through the meat and cut perpendicular to them. This shortens the fibers for maximum tenderness.
Can I use a different cut of beef?
Skirt steak works perfectly as a substitute. It has similar texture and flavor. Avoid tougher cuts like chuck—they won’t absorb the marinade as well.
How do I know when it’s done?
Use a meat thermometer for accuracy. For medium-rare, aim for an internal temperature of 135°F. The steak will continue cooking slightly while resting.
Can I cook this in the oven instead?
Yes! Broil on high for 5-7 minutes per side, watching closely to prevent burning. The high heat mimics grilling for a nice crust.
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