Grilled Flank Steak Recipe

There’s something about a perfectly grilled piece of beef that feels like a small celebration. This Grilled Flank Steak Recipe is built around one 1 ½ pound flank steak and a single batch of a bright, flavorful flank steak marinade. It’s simple, approachable, and full of bold flavors that make every slice sing. Whether you’re firing up the grill for a weeknight dinner or feeding friends on the weekend, this recipe delivers tender, juicy steak with a caramelized exterior and a punchy marinade that keeps the meat moist and tasty.

Why this Grilled Flank Steak Recipe works

Flank steak is lean, muscular, and full of beefy flavor. It benefits from a good marinade to help tenderize and infuse flavor. This Grilled Flank Steak Recipe pairs an acidic, savory marinade with high, direct heat to create a beautifully charred crust and a medium-rare center when cooked correctly. The key steps—marinating time, high-heat searing, and resting—are all simple but essential. Follow them, and you’ll get consistent results every time.

Ingredients

• 1 ½ pound flank steak
• 1 batch flank steak marinade

About the ingredients

Because this recipe centers on the beef and the marinade, quality matters. Choose a 1 ½ pound flank steak with even thickness for consistent cooking. The marinade—referred to here as “1 batch flank steak marinade”—is assumed to be prepared to your taste: a balance of acid, oil, aromatics, and seasonings. If you are mixing your own, aim for a combination of soy sauce or a similar savory liquid, an acid such as vinegar or citrus, oil to carry flavor, minced garlic or shallot, and a touch of sweetener or mustard to round things out. The ingredient list used here matches the exact amounts given: one 1 ½ pound flank steak and one full batch of the marinade.

Equipment

• Grill (charcoal or gas) or a hot cast-iron skillet if cooking indoors
• Instant-read thermometer
• Tongs
• Shallow dish or resealable bag for marinating
• Cutting board and a sharp knife
• Aluminum foil or a tent for resting

Prep and timing

Plan for at least 30 minutes to marinate, though a few hours or overnight yields better flavor and tenderness. Total active cooking time is short—about 6–12 minutes depending on grill heat and preferred doneness—plus a 10-minute resting period. This keeps dinner fast and satisfying without sacrificing depth of flavor.

Step-by-step instructions

Below are clear, rewritten directions that follow the original order but present each step in a concise, step-by-step format. Quantities mirror the ingredient list: one 1 ½ pound flank steak and one batch flank steak marinade.

1. Prepare the marinade: If your batch flank steak marinade isn’t ready, combine the components of the marinade in a shallow dish or a resealable bag. Mix well so the flavors are evenly distributed. Make sure the marinade has balanced savory, acidic, and oily elements so it can both flavor and tenderize the steak.
2. Marinate the steak: Place the 1 ½ pound flank steak into the dish or bag with the 1 batch flank steak marinade. Turn the steak once or twice to coat it completely. Seal the bag or cover the dish. Refrigerate and allow the steak to marinate for at least 30 minutes. For best results, marinate for several hours or overnight to deepen flavor and tenderness.
3. Remove from refrigerator before grilling: About 20–30 minutes before cooking, remove the steak from the refrigerator and let it come closer to room temperature. This promotes even cooking. Keep the steak covered while it warms slightly.
4. Preheat the grill: Heat your grill to high heat. If using a gas grill, preheat with the lid closed until very hot. For charcoal, build a hot, even bed of coals. If cooking indoors, preheat a heavy cast-iron skillet over high heat until it is smoking hot. Clean and oil the grill grates or skillet just before cooking to prevent sticking.
5. Shake off excess marinade: Remove the steak from the marinade and let any excess drip off. Pat the surface lightly with a paper towel if it seems overly wet—this helps achieve a good sear and caramelization.
6. Sear the steak: Place the flank steak directly over the hottest part of the grill or into the hot skillet. Sear without moving for about 3–5 minutes, until a deep brown crust forms. Use tongs to flip the steak and sear the other side for another 3–5 minutes. Cooking time will vary with grill temperature and steak thickness; aim for a nicely charred exterior.
7. Check doneness: Use an instant-read thermometer inserted into the thickest part of the steak to gauge doneness. For medium-rare, target 125–130°F (52–54°C); the steak will rise a few degrees while resting. If you prefer more done, cook to your preferred final temperature, remembering to remove the steak from heat a few degrees early.
8. Finish indirect if needed: If the steak is well-browned but not yet at your desired internal temperature, move it to a cooler area of the grill or reduce heat and finish cooking indirectly until it reaches the target temperature. This prevents over-charring while allowing the center to catch up.
9. Rest the steak: Transfer the cooked flank steak to a cutting board and tent loosely with foil. Let it rest for 8–12 minutes. Resting allows the juices to redistribute so slices will be juicy rather than leaking out on the cutting board.
10. Slicing for service: When ready to slice, trim any large pockets of excess fat if desired. Using a sharp knife, slice the steak thinly across the grain at a slight diagonal. Cutting against the grain shortens the muscle fibers and makes each bite more tender. Aim for slices about ¼ inch thick.
11. Serve and enjoy: Arrange the slices on a platter and serve immediately. The steak pairs well with grilled vegetables, a simple salad, rice, or warmed flatbread. Spoon any reserved marinade that has been boiled for safety over the sliced steak if you want extra sauce.

Troubleshooting and tips

• If the exterior chars too quickly before the inside reaches the right temperature, the grill is too hot. Move the steak to a cooler zone and finish indirectly.
• Don’t skip resting. Cutting too soon causes juices to run out and leaves the steak drier.
• Always slice across the grain. This single step makes flank steak feel far more tender.
• Pat the steak slightly before searing. Excess marinade on the surface can steam the meat instead of browning it.
• For consistent thickness, use the flatter end of the flank for uniform slices or butterfly thicker areas very slightly before marinating.

Serving ideas

This Grilled Flank Steak Recipe is versatile. Try these simple pairings:

• Thin slices tossed into a bowl with steamed rice, cucumbers, scallions, and a drizzle of the marinade reduced into a sauce.
• Steak tacos with warmed flatbreads, sliced avocado, pickled onions, and a squeeze of citrus.
• Classic steak salad: mixed greens, cherry tomatoes, red onion, crumbled cheese, and sliced steak with a vinaigrette.
• Serve alongside grilled vegetables like asparagus, bell peppers, or corn for a straightforward, balanced plate.

Make-ahead and storage

Marinate the steak up to 24 hours in advance and keep it refrigerated. Cooked slices store in an airtight container in the refrigerator for up to 3 days. Reheat gently in a skillet over low heat or briefly in a warm oven to avoid overcooking. Leftover sliced steak is especially good chilled in salads or quickly warmed for sandwiches.

Flavor variations

The beauty of this Grilled Flank Steak Recipe is how adaptable it is. Here are a few ideas for adjusting the marinade base (the exact batch quantity remains the same):

• Herb-forward: Add chopped fresh rosemary, thyme, and parsley for a fragrant twist.
• Citrus-kissed: Replace some of the marinade’s acid with orange or lemon juice for bright citrus notes.
• Smoky-sweet: Stir in a touch of tomato paste and a little brown sugar to create a sticky, caramelized finish.
• Spicy-sweet: Add red pepper flakes or a dash of hot sauce for heat balanced by a hint of honey.

Nutrition and portioning

One 1 ½ pound flank steak typically serves 3–4 people depending on appetite and sides. It’s a high-protein centerpiece; pair it with fiber-rich vegetables and a whole grain for a balanced meal. Because flank steak is lean, the marinade helps add moisture and boosts flavor without excess fat.

Final notes

This Grilled Flank Steak Recipe keeps things honest and straightforward: one 1 ½ pound flank steak, one batch flank steak marinade, and a few smart techniques to maximize flavor and tenderness. Focus on a good sear, proper resting, and thin slices across the grain, and you’ll end up with juicy, flavorful steak that’s simple enough for weeknights and good-looking enough for guests. Fire up the grill and enjoy—this is one recipe that rewards a little time with a lot of flavor.