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Seared Ahi Tuna

Seared Ahi Tuna

After completing graduate school in the late 80s, I spent a year studying martial arts at Kyoto University in Japan. The school cafeteria served many things that one would never encounter in the states (natto spaghetti for example), but one thing they did serve that I couldn't get enough of was seared ahi tuna, prepared fresh to order. It was usually served with white rice, a little shoyu, some radish sprouts, a few slivers of nori, and some toasted sesame seeds. One ample serving may have cost as much as 200 yen (~$2) but I think it was probably less. Seeing a recipe for seared ahi in the South Beach Diet Cookbook got me thinking again of this delicious fish, and I found some gorgeous steaks at Whole Foods. The South Beach recipe calls for the steaks to be seared with peppercorns. I was looking for a more Asian twist, so I made up my own marinade with tamari, sesame oil and ginger.

Ahi tuna is also known as yellowfin tuna. To make seared ahi, you need to start with very fresh, sushi-grade ahi, as you will only be lightly searing the outside, leaving the inside raw. Not even rare, but raw. The freshness and the quality of the fish make a huge difference with this dish, so don't even attempt it with a lower grade of fish.

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Seared Ahi Tuna Recipe

Ingredients

  • 2 (6-8 ounce) ahi tuna steaks (3/4 of an inch thick)
  • 2 Tbsp dark sesame oil
  • 2 Tbsp soy sauce (or 2 teaspoons of wheat-free tamari for gluten-free option)
  • 1 Tbsp of grated fresh ginger
  • 1 clove garlic, minced
  • 1 green onion (scallion) thinly sliced (a few slices reserved for garnish)
  • 1 teaspoon lime juice

Method

1 Mix the marinade ingredients together and coat the tuna steaks with the marinade, cover tightly, and refrigerate for at least an hour.

2 Heat a non-stick skillet over medium high to high heat. When the pan is hot, remove the tuna steaks from the marinade and sear them for a minute to a minute and a half on each side ( even a little longer if you want the tuna less rare than pictured.)

3 Remove from pan and slice into 1/4-inch thick slices. Sprinkle with a few green onion slices.

Can serve plain, with white rice, or over lettuce or thinly sliced cabbage or fennel. Shown served over sliced fennel salad.

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28 Comments

Yum! When I make it I also add a little chinese cooking wine to the marinade. It's also great over arugala.

Posted by: friedapplepie on January 13, 2006 5:33 AM

This is probably against all kinds of safety recommendations, but I really like to take my tuna out of the fridge for a bit before cooking -- it sears so briefly that the inside can be totally cold if it is taken right from the fridge into the pan.

I love ahi tuna at home ... it has become such a cliche in restaurants here (being one of Michael Bauer's favorite dishes and thus on every menu in town) but it's such a treat when made correctly. We usually serve it with cold soba noodles, but that salad looks delicious.

Posted by: jen maiser on January 13, 2006 8:42 AM

Great sounding, and not too much acid in the marinade (a thing to be cautious of when dealing with tuna).

By the way, AHI is Hawaiian for 'tuna' comprising Yellowfin, Bluefin and BigEye. Bonito and Skipjack tunas are not as common in Hawaii, and Albacore is not included in the common vernacular.

When slicing raw tuna, it is easiest to work with the grain rather than across it. It will hold together better both while slicing and serving.

Keep up the great work!

Note from Elise: Thanks for the tips!

Posted by: The Chef Author Profile Page on January 13, 2006 4:27 PM

How do I know if I have "sushi quality Ahi Tuna"? I bought a couple of nice tuna steaks a couple of weeks ago and froze them. I want to try to make Ahi Tuna but I don't want to get sick. Help!

Note from Elise: You need fresh tuna, not frozen, for this dish.

Posted by: Dave on May 21, 2006 9:31 AM

Delicious is all I can say! I used Bluefin Tuna and it was worth every penny. I served it along side your recipe for Kale with Seaweed. So yummy.

Posted by: Jenna on May 25, 2006 6:41 PM

The Seared Ahi Tuna was extremely delicious with the marinade. This was only my second time attempting to cook Ahi Tuna. It came out just right. Would highly recommend it.

Posted by: D.T. on December 9, 2006 5:33 PM

By law, a grocer may not call it "sushi-grade" for health reasons. Some still do so they can charge higher prices but if you buy at a quality market or store, the tuna should be of good quality and fresh anyway.

Posted by: Shannon on August 6, 2007 2:48 PM

Absolutely fantastic. I got hugs it was so good. Thank you for this piece of culinary greatness. May I suggest dipping in a dish of soy and wasabi. Treat as sushi. Excellent.

Posted by: dennis on August 6, 2007 10:33 PM

I just bought a couple of ahi tuna steaks from Trader Joe's in SF and made this recipe - it came out great. Thanks!

Btw the label on my tuna said "sashimi grade" which I assume is the same quality as sushi grade.

Posted by: brian on August 6, 2007 11:39 PM

Just tried this recipe - huge hit! Thank you!

Posted by: Shannon on August 20, 2007 5:06 PM

Just want to say I love this recipe and this recipe as well as the steak salad recipe have become staples in my household. I have this recipe at least once every two weeks. It is easy and quick, and when I am not in the mood to figure out another meal to cook, I usually decide on the seared ahi tuna and/or the steak salad for the week.

Thanks for making my life easier.

Elise

Posted by: Elise Lafosse on September 6, 2007 12:38 PM

Great recipe -- so easy, too! I sprinkled some sesame seeds on the ahi steaks just before cooking. It was a hit!! I kept thinking how much $$ I saved too had we ordered this at a restaurant. Thanks again! :-)

Posted by: Maria L. on November 17, 2007 6:42 PM

This recipe was out of this world!

My girlfriend is not a big sushi fan, I had all I could do to prevent her from eating my share! :)

Posted by: Ron on January 19, 2008 3:41 PM

This is a great recipe. My mother loves seared ahi, but it's somewhat expensive in restaurants and you only get a few pieces per order. Having some ahi steaks in the freezer (about 20 I managed to get for free :D ) I decided to prepare this for her birthday. She loved it and asked me to make it again sometime. Delicious, healthy and light. I don't really know what D.T is talking about law prohibiting labeling of grade. Most likely a state law I'm not familiar with. However, not all groceries will sell tuna suitable for such a recipe. You need to be careful when selecting your fish in the market. But when it's sashimi/sushi grade ahi, you can certainly tell by the rich red color that is uniform throughout the steak.

Posted by: Eric on March 20, 2008 12:51 PM

Delicious! I served mine with a green salad of Romaine heart and spinach topped with purple cabbage, orange bell pepper, sliced pickled garlic, sliced pickled red chili pepper, Roma tomato and balsamic vinegrette spiced with Rice vinegar. Didn't ask about the freshness of the tuna at my generally excellent grocer. The flavor told the story by itself!

Posted by: Gary Luce, Kingsport, TN on March 29, 2008 5:45 PM

Looks great! I usually coat my tuna with sesame seeds before searing, but I'm out of them at the moment and looking for something different to do anyway. I am going to try this tomorrow. Thanks for another awesome recipe, Elise!

Posted by: Nick on April 3, 2008 1:57 PM

Delicious! My husband is Japanese-American and is somewhat of a "food snob" especially when it comes to Japanese cuisine. We tried this tonight, using what we had at home (we didn't have the green onions), and ate with plain Japanese rice, salad with Asian dressing, and Japanese pickles. It was divine! Very very tasty and my Mr. Picky loved it too ;) The combo of ginger and sesame flavors are really wonderful. It's absolutely crucial to very mildly sear - it should be like sashimi on the inside. Thanks, Elise! Any other recommendations?

Posted by: wasabipea on April 13, 2008 5:51 PM

Thank you! I just came back from the market today with my first piece of ahi-tuna to be made at home. I confess I was quite shy looking at that beautiful red fish, but your recipe is wonderful! I served it with brown rice and sauteed asparagus.

Posted by: Carla on June 14, 2008 4:24 PM

My husband and I love sushi and like to make it at home. But we live in a smallish city in Indiana, which makes it difficult to find sushi-grade fish, including Ahi tuna. If it can be found, it's usually frozen. Is that acceptable to use in recipes such as the above and how do you tell? And if not, what's the best way to cook ahi tuna that isn't sushi-grade?

Sushi grade means that you will be eating some of it raw, and that the quality of the fish is so high it will taste good when you do so. Personally, I wouldn't cook tuna this way unless I had very high quality, fresh tuna. I know some sushi restaurants in the US are required to use fish that has been frozen, as to kill any bugs that might give people trouble. But then they are getting restaurant-grade tuna that has been frozen, not typically available to the general public. If you do not have access to a high grade of tuna (the type that you can eat raw) then I would just grill the tuna steaks until just cooked through. ~Elise

Posted by: Heather on June 19, 2008 10:27 AM

I made this tonight using a HUGE 1.5lb bluefin tuna steak from my local fish market. Absolutely amazing!!! I served it over the roasted fennel salad listed here. So cheap compared to the tiny appetizer portions one receives at a restaurant. Sure to become a weekly favorite.

Posted by: jake on August 22, 2008 7:04 PM

Thanks for the excellent recipe; this is my second use of the recipe. I use a small George Foreman grill and have found the optimum searing time for my tastes to be about 40-45 seconds (after pre-heating the grill for about 3 minutes). The Ahi was from Trader Joe's and imported from the Philippines. Good stuff.

Posted by: Weng Leong on August 28, 2008 8:36 PM

Delicious! My boyfriend raved about this recipe. We both love ahi tuna and bought some sushi grade tuna at the market. I served it with plain white rice and some roasted garlic asparagus. Thank you for the recipe, I will be making this again and again.

Posted by: Ashley V. on September 13, 2008 10:56 PM

The marinade's garlic and soy flavors gave the ahi a heavy flavor that overshadowed the delicacy of the fish. I will go back to the using a dry rub using such ingredients as sesame seeds, salt, pepper and a little ground chile and/or star anise which add a bright note to the crust. A dipping sauce with ginger, mirin, soy sauce/fish sauce, and lime juice can be used in place of soy with wasabi for variation. Even simpler, seared ahi is also quite good sprinkled with furikake, particularly the one made from dried shiso leaves.

Regarding "sashimi grade" fish, the FDA recognizes no such designation and although some sellers use the term there is no definition nor set standards. Like other fish, tuna is often frozen at sea then sold thawed in the market, appearing to be "fresh." Some people say this compromises the texture but freezing is effective in killing parasites and in some cases is legally required. "Sushi grade fish" makes no sense since sushi refers to vinagered rice which may be topped with many foods other than fish.

Posted by: Brad Erickson on September 21, 2008 8:33 PM

There is no reason you couldn't use thawed tuna for this recipe. Almost all tuna has been frozen before it reaches the public. Also, a deep red color is no indication of freshness. It's usually an indication that the fish has been treated with carbon monoxide which is used to color the fish in a way that most people find pleasing. The FDA has decided that the CO treatment of tuna is safe for human consumption.

Posted by: Jill on October 26, 2008 2:56 PM

This was wonderful! I made it and tweaked it a bit:
http://noshesthoughtsreves.blogspot.com/2008/11/thon-saisi-feu-vif.html

Posted by: Lady Amalthea on November 21, 2008 12:39 PM

I really appreciate all the comments about frozen tuna, as many places can't get the good stuff all (or even some) of the time. Maybe a good recipe for grilled tuna is in order?

Posted by: Jonathan Blum on December 9, 2008 3:38 PM

Great recipe! This was the first time I've ever seared tuna and it came out great. I just used tuna from publix. I drizzled some sauce I made from some of the ingredients from the marinade and some 'iron chef' teriyaki and garlic sauce. Turned out really well, thanks a lot for the recipe. I'll be making this again soon.

Posted by: William on January 12, 2009 7:50 PM

So if people say ahi tuna, they are saying, tuna,tuna? I reference ahi = tuna in Hawaiian.
I understand that some tuna is exposed to carbon monoxide gas to give it the vibrant pink-red color. Does anyone know anything about it?

Posted by: Thomas Lee Callahan on February 10, 2009 1:34 PM

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