How To Cook Flank Steak In The Oven

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Cooking flank steak in the oven is a quick and easy way to cook this steak. You need just 5 simple ingredients to make this broiled flank steak recipe, and it takes just 5 minutes to prep.

Since my recipes for cooking sirloin steak, filet mignon, New York strip steak, and London broil in the oven are both reader favorites, I thought it would be fitting to show you how to cook flank steak using a similar method as well. (You can also use a broiled steak method if you prefer.)

Whether you think this is the best way to cook flank steak, I’ll leave that up to you to decide, but I can tell you with certainty, it’s delicious and just perfect when you want something simple.

How To Cook Flank Steak In The Oven

Wondering how long to cook flank steak? I’ll walk you through each step on how to make flank steak:

• Marinate steak. In a small baking dish large enough to hold the steak, whisk together the olive oil, coconut aminos, lime juice, minced garlic, salt, and pepper. Add the flank steak and turn to coat in marinade. Cover and refrigerate steak for at least 2 hours, or up to 24 hours, turning it over halfway through.

TIP: Don’t marinate flank steak for longer than a day. It can get mushy if you do.

• Brown flank steak. After you heat up the grill plan, add the flank steak (shake off any excess marinade) and cook for about 2 minutes per side, until browned with grill marks on both sides.

TIP: The steak will not be cooked through at this step and that’s okay! You are just browning the outside.

• Broil flank steak. Place the pan into the oven under the broiler. Broil to desired doneness. (See cooking times and temperatures below.)

TIP: Times will vary depending on the thickness of your steak. Estimates here are for a 1- to 1.25-inch-thick steak. Use a probe thermometer for best results – set the temperature you want based on the chart for doneness and take it out when it beeps.

• Rest steak. Transfer the steak to a plate so it doesn’t continue cooking and cover and rest 5 minutes before slicing.

FYI: Resting is important for a juicy flank steak (or any steak, for that matter). This helps the juices incorporate into them eat, so they don’t leak out when you cut into it.

• Slice against the grain. Flank steak is ideal sliced as thinly as possible.

Flank Steak Cooking Time Chart

Doneness	Brown On The Stove	Then Broil For	Target Temperature *
Rare	2 minutes per side	1 minute	120 degrees F
Medium Rare	2 minutes per side	2 minutes	130 degrees F
Medium	2 minutes per side	3 minutes	140 degrees F
Medium Well	2 minutes per side	4 minutes	150 degrees F
Well Done	2 minutes per side	5 minutes	160 degrees F

*Target temperature is before resting, which will raise temperature by another 5 degrees.

Flank Steak Recipe FAQs

Does flank steak need to be marinated?

The best way to fix flank steak is to marinate before cooking. This will impart major flavor, along with also tenderizing the meat.

The simple flank steak marinade recipe in this post (olive oil, coconut aminos, lime juice, garlic, salt and pepper) can be whipped up in a few minutes and will make cooking flank steak easy and delicious.

These flavors pair well with a flank steak used for Mexican recipes, like a taco salad (or simply with a scoop of fresh tomato salsa), but you can also try balsamic steak marinade instead for a different variation.

Can you broil flank steak?

Yes, you can make flank steak in the oven by broiling it. In this flank steak recipe, we’re also searing it on the stove to give it nice flavor and color before finishing it off under the broiler.

Can you cook the steak entirely in the oven and skip the stove top?

Yes, you can. However, I highly recommend the stove top to get browning on the outside for flavor – see the flank steak time chart above.

If you really want to broil the steak without browning it first, broil it for 6 minutes, then flip and broil for this much time based on your desired doneness:

• Rare – 5 more minutes (120 degrees F)
• Medium rare – 6 more minutes (130 degrees F)
• Medium – 7 more minutes (140 degrees F)
• Medium well – 8 more minutes (150 degrees F)
• Well done – 9 more minutes (160 degrees F)

Use a meat thermometer to double check for the temperatures above. Broiled flank steak temperature will increase by an additional 5 degrees when resting in the next step.

Why cut flank steak against the grain?

It’s best to cut flank steak against the grain so that you cut through and shorten the meat fibers. This makes it easier to chew, and is especially helpful for cuts of meat that aren’t naturally tender.

Broiled Flank Steak Storage Instructions

Can you make it ahead?

Yes, you can make this ahead. Mix up the flank steak marinade recipe and marinate for up to 24 hours.

Once it’s marinated, cooking flank steak in the oven takes just 5-10 minutes depending on how you like your steak.

How to store beef flank steak

Store this broiled flank steak in the refrigerator for 3-4 days. You can also use the leftovers to make sugar-free beef jerky!

Can you freeze broiled flank steak?

Yes, you can freeze this flank steak recipe for 2-3 months if you really need to. Let thaw overnight in the refrigerator before reheating. However, since it’s so quick to make, it may be better to just prepare it fresh.

How to reheat broiled flank steak

Reheat broiled steak in the oven at 275 degrees F, covered with foil, preferably with a little broth in the baking dish to keep the air around it moist.

What To Serve With Broiled Flank Steak

Cooking flank steak in the oven? All you need is a delicious side dish to go along with it. Serve your flank steak with a healthy side dish and vegetable recipe:

• Oven Roasted Zucchini – Just 25 minutes to make (mostly hands-off) and made with 4 simple ingredients.
• Mashed Cauliflower – Silky smooth and tastes just like mashed potatoes! (Maybe even better!)
• Baked Cheesy Asparagus – Asparagus + cheese = an easy, healthy side dish that everyone loves.
• Garlic Butter Mushrooms – Learn how to saute mushrooms with my easy tips, these are ready in 20 minutes.
• Cauliflower Rice – Add some Mexican spices and flank steak for an easy meal… or turn it into a keto burrito bowl!

• Cast Iron Grill Pan – Cooking flank steak in the oven is easy with this pan that can do both. 
• Meat Thermometer With Probe – The best way to tell if beef flank steak recipes is cooked through is to use a meat thermometer. You can set this thermometer to your desired temperature.