How to Cook Flank Steak in Oven
If you want to learn how to cook flank steak in the oven, even a lean cut can be transformed into a tender, flavorful dinner. Start by patting the steak dry and trimming any excess fat.
Season it well with salt and pepper or a garlic-herb blend for extra flavor. Next, sear the steak on the stovetop to develop a nice crust.
Then, roast it in the oven to your desired doneness. When it’s done, slice the steak thinly across the grain.
The finishing touch may surprise you and will enhance the texture and taste of your flank steak.
Key Takeaways
- Pat flank steak dry, trim excess fat, and season generously with salt, pepper, or a marinade.
- Preheat the oven to high heat and use a lightly oiled cast-iron skillet or sheet pan.
- Roast the steak on the center rack until browned and the internal temperature reaches your preferred doneness.
- Rest the steak 5 to 10 minutes before slicing to keep the juices inside.
- Slice thinly against the grain for maximum tenderness and serve with pan sauce or chimichurri.
What You Need for Oven Flank Steak
To cook flank steak in the oven, you’ll need a few basic ingredients and tools: a flank steak, salt, pepper, oil, and any marinade or seasoning you prefer. Choose a steak with even thickness and good color when you handle flank steak sourcing, since quality affects texture and flavor.
To cook flank steak in the oven, start with a well-marbled cut, simple seasoning, and quality ingredients.
You’ll also need one or two oven safe pans, ideally a heavy skillet or roasting pan that can handle high heat without warping. Keep a pair of tongs nearby for safe handling and turning.
A meat thermometer helps you monitor doneness accurately, especially if you want medium-rare results. If you plan to season with a dry rub, have a small bowl ready for mixing.
A cutting board and sharp knife will help you slice the cooked steak cleanly later. With these tools in place, you can cook efficiently and avoid unnecessary interruptions during the oven process.
How to Prepare Flank Steak
Start by patting the flank steak dry with paper towels so the surface can brown properly in the oven. Trim only any thick exterior fat, then inspect the grain so you can slice later against it for tenderness.
If the steak is uneven, gently pound the thicker end to create a more uniform thickness, which helps it cook evenly. You can also use the sous vide alternative first, then finish in the oven for tighter control.
- Remove surface moisture
- Trim excess silver skin
- Even out thickness
- Identify the grain direction
- Keep the steak cold until cooking
For extra aroma, some cooks briefly use a flambé technique on aromatics nearby, but avoid direct flame on the meat. Set the steak on a rack over a sheet pan so air can circulate beneath it.
Let it rest at room temperature only briefly before roasting; this prevents a cold center and supports efficient cooking in the oven.
Best Seasoning for Flank Steak
For flank steak, you can keep the seasoning simple with salt and pepper to highlight the meat’s natural flavor. If you want more aroma, you can add a garlic herb blend for a balanced, savory crust.
For deeper flavor, you can use a marinade spice mix that brings both seasoning and tenderness.
Salt And Pepper
Salt and pepper are the best basic seasoning for flank steak because they enhance the beef’s natural flavor without overpowering it. Use kosher salt and freshly ground black pepper, and apply them evenly on both sides.
A pepper grinder gives you coarser, more aromatic pepper that clings well to the meat. For best results:
- Pat the steak dry first.
- Season just before cooking or up to 40 minutes ahead.
- Press the salt and pepper into the surface.
- Coat the edges, too.
- Let the steak rest at room temperature briefly.
This simple salt and pepper approach helps create a balanced crust in the oven and keeps the steak’s flavor clean, savory, and focused.
Garlic Herb Blend
A garlic herb blend adds depth to flank steak by layering savory, aromatic flavors that complement the beef without masking it. Mix minced garlic with chopped rosemary, thyme, and parsley, then add a little oil to help it cling.
Rub the mixture evenly over both sides of the steak, pressing it into the surface so the herbs stay in place during roasting. Keep the garlic layer thin to reduce garlic bitterness, which can become pronounced under high heat.
You can also make herb substitutions, such as oregano or sage, if you want a different profile. Use fresh herbs when possible for cleaner flavor, or dried herbs in smaller amounts. Apply the blend just before cooking for the most balanced, direct seasoning.
Marinade Spice Mix
How do you build a marinade spice mix that actually boosts flank steak flavor? You combine bold, balanced spices with salt, acid, and oil so the meat absorbs seasoning evenly.
Use this gluten free, dairy free blend before you roast it in the oven:
- 1 tablespoon kosher salt
- 1 teaspoon black pepper
- 1 teaspoon smoked paprika
- 1 teaspoon garlic powder
- 1/2 teaspoon onion powder
Rub the mix over the steak, then add olive oil and a little lemon juice or vinegar. Let it rest for 30 minutes to 4 hours.
This method deepens savory flavor, improves browning, and keeps the steak juicy. For best results, press the seasoning into the meat and avoid overcrowding the pan.
How to Cook Flank Steak in the Oven
To cook flank steak in the oven, start by patting the meat dry, seasoning it well, and preheating your oven to a high temperature so the steak sears quickly and stays tender. Place the steak on a lightly oiled, rimmed sheet pan or in a preheated cast-iron skillet for better browning.
Pat flank steak dry, season generously, and roast hot for a quick sear and tender, juicy results.
Slide it onto the center rack and cook until the exterior is deeply browned and the interior reaches your desired doneness. Remove it promptly, then rest it on a cutting board so the juices settle before you slice.
If you marinated the steak, let excess marinade drip off before cooking to reduce smoke and simplify oven cleanup. Keep flank storage simple by wrapping leftovers tightly and refrigerating them soon after the steak cools.
When you’re ready to serve, cut the meat thinly across the grain to preserve tenderness and make each bite easier to chew.
How Long to Bake Flank Steak
Bake flank steak in a hot oven for about 8 to 12 minutes for medium-rare, depending on thickness and how well your oven runs. For a 1-inch steak, start checking early so you don’t overcook it. You want the surface browned and the center still tender, which supports flank health by preserving juiciness and texture.
- 8 minutes: very thin steak, rare to medium-rare
- 10 minutes: average thickness, medium-rare
- 12 minutes: thicker cut, closer to medium
- Use an instant-read thermometer for accuracy
- Rest the steak 5 to 10 minutes after baking
Don’t trust grilling myths that say high heat alone guarantees perfect doneness. Your oven’s actual temperature, the steak’s thickness, and your desired doneness matter more than a fixed timer. If you prefer medium, add a minute or two, but check often.
How to Slice Flank Steak
To slice flank steak correctly, first identify the grain, which runs in long muscle fibers across the meat. Then cut across that grain, not with it, to shorten the fibers and improve tenderness.
Use a sharp knife and make thin, even slices for the best texture and easier serving.
Grain Direction
Look closely at the grain of the flank steak before you slice it, because cutting against those muscle fibers makes each bite much more tender. Identify the grain direction while the steak rests on a clean board, and keep oven safety in mind by using stable tools and a heat-safe surface.
- Find the long, parallel lines on the meat
- Turn the steak so your knife crosses those lines
- Keep your noncutting hand clear of the blade
- Use a sharp knife for cleaner control
- Check the grain again if the steak shifts
If the grain changes across the cut, adjust your angle as you move. This keeps your slices consistent and preserves the steak’s texture without overcomplicating the process.
Thin Slices
Paper-thin slices make flank steak easier to chew and help it serve neatly. Let the steak rest 10 minutes, then place it on a cutting board with the grain running left to right.
Use a sharp knife and cut across the grain at a slight bias; this shortens the muscle fibers and gives each bite a tender feel. Keep slices about 1/4 inch thick, and use even pressure so you don’t tear the meat.
If you see long strands, your technique likely means you’re following the grain, not crossing it. Slice only what you’ll serve right away to preserve moisture. Thin pieces also improve flavor pairings with chimichurri, garlic butter, or roasted vegetables, since each bite absorbs sauce evenly and plates cleanly.
Best Ways to Serve Oven Flank Steak
How should you serve oven flank steak at its best? Slice it thinly across the grain, then arrange the pieces on a warm platter so the juices stay in the meat. Pair it with the best side dishes that balance its bold flavor and lean texture.
A bright pan sauce adds moisture and depth, especially if you’ve saved the roasting drippings. Keep the presentation simple and focused.
- Serve with roasted potatoes for a hearty plate
- Add a crisp green salad for freshness
- Offer grilled vegetables for color and balance
- Spoon pan sauce over the steak just before serving
- Finish with chimichurri or herb butter for extra flavor
You can also tuck the steak into tacos, grain bowls, or sandwiches. If you’re entertaining, serve it family-style so guests can choose their portions and sides easily.
Keep everything hot, and your steak will taste tender, juicy, and polished.
Frequently Asked Questions
Can Flank Steak Be Marinated Overnight for Better Flavor?
Yes, you can marinate flank steak overnight for better flavor. Marinating science shows overnight helps seasoning penetrate surface fibers, improving flavor absorption.
Don’t exceed 24 hours, though, or you’ll risk mushy texture.
Should Flank Steak Rest After Baking, and for How Long?
Yes, let it rest, and you’ll avoid a juice tsunami. Resting meat 5–10 minutes after oven timing lets the internal temp stabilize.
Marinating basics, frozen cooking, and tenderness tricks matter, too, for juicier slices.
Can I Cook Flank Steak From Frozen in the Oven?
Yes, you can cook flank steak from frozen, but you’ll get better results if you thaw it first.
If you use the frozen option, adjust oven time, and check internal temperature carefully.
What Internal Temperature Is Best for Medium-Rare Flank Steak?
For medium rare flank steak, you should aim for an internal temperature of 130–135°F. Pull it from the oven at 125–130°F, then let it rest; it’ll rise a few degrees while staying juicy.
How Do I Keep Flank Steak From Becoming Tough?
You keep flank steak tender by slicing against the grain, marinating it, and cooking it quickly to medium-rare. Use tenderization techniques like pounding, plus flavor enhancers such as acid, salt, and oil.
Conclusion
Now you’ve got the playbook for oven flank steak: dry it well, season it boldly, sear it hot, and roast it just until it’s juicy. Let it rest so the juices stay put, then slice it thin against the grain and watch the meat practically melt on the plate.
Serve it with chimichurri or pan sauce, and you’ll turn a simple cut into a restaurant-worthy centerpiece that looks and tastes absolutely gigantic. Mastering how to cook flank steak in the oven will elevate your cooking game and impress any guest.
