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Tuna with Roasted Cipolline Onions

Giada De Laurentiis

Recipe courtesy Giada De Laurentiis

Show: Everyday ItalianEpisode: Friend in Town

Rated: 4 stars out of 5Rate itRead users' reviews (29)

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Times:

Prep
30 min
Inactive Prep
--
Cook
1 min
Total:
31 min
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2 pounds cipolline onions2/3 cup balsamic vinegar1 tablespoon plus 1/3 cup extra-virgin olive oil1 teaspoon salt, plus more for seasoning1/4 teaspoon freshly ground black pepper, plus more for seasoning3 tablespoons fresh lemon juice2 teaspoons chopped fresh thyme leaves6 (6-ounce) tuna steaks (about 1-inch thick) 

Bring a large pot of water to boil. Add the onions and cook for 2 minutes. Drain and cool. Peel the onions and cut off the root ends.Preheat the oven to 450 degrees F.  Toss the onions, vinegar, 1 tablespoon oil, 1/2 teaspoon of salt and 1/4 teaspoon of pepper in a 13 by 9-inch baking dish. Roast in the oven until the onions are tender and golden, stirring occasionally, about 1 hour.  Meanwhile, whisk the 1/3 cup oil, lemon juice, thyme, and remaining 1/2 teaspoon of salt and 1/4 teaspoon of pepper in another 13 by 9 by 2-inch baking dish. Place the tuna steaks in the marinade and turn to coat. Let stand for 5 minutes on each side. Oil the grill rack and prepare the barbecue for medium-high heat. Grill the steaks to desired doneness, about 3 minutes per side for medium. Cut the steaks in half. Transfer the steaks to a platter. Spoon the onion mixture around and serve.

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Read more Comments & Reviews (29)

Comments & Reviews

  • recipe Tuna with Roasted Cipolline Onions
    Catherine Wilmington, DE 08-08-2009

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    Should be 10 star recipe

    Rated: 5 stars out of 5
    Thank you Giada for this fantastic recipe. I did not and could not find the cipolline onions so I used red onions. Having... read the reiviews I really kept and eye on the onions while they were roasting. At 45 minutes they seemed pretty done so I turned off the oven and let them sit for another 15 minutes. I also sprayed my baking dish with olive oil and this made clean up very easy. I will make this again and again and probably use the onions for steaks and even pork chops. Thanks Giada for helping me to be a good cook in all the years I have followed you and made your recipes I've only had 1 failure and everything else is always fantastic. Bonnie BarneyRead more
  • recipe Tuna with Roasted Cipolline Onions
    William Hyattsville, MD 04-06-2009

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    Sauce is delicious!

    Rated: 4 stars out of 5
    Ok, I screwed this recipe up royally, but it has so much potential! First I used challots cause there was nothing resembling... the cipolline onions at my local market. I wouldn't say don't do that necessarily, but I was desperate trying to practice for a nice Good Friday meal. ANYWAY, the point is, although the onions were not great, the sauce is AMAZING! WOW, it adds so much flavor to the tuna. And I agree with the comment below about the marinade, can't really taste it, but the sauce is so good it really does not matter. Personally, I liked the sweetness of the sauce so much, I'm gonna try it without the onions to see how it turns out. Definitely a recipe worth keeping though.Read more
  • recipe Tuna with Roasted Cipolline Onions
    Heather Prospect, CT 09-01-2008

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    A few substitutions but so yummy

    Rated: 4 stars out of 5
    I used tilapia instead of tuna, just for personal taste. The marinade worked really well for it. I loved the onions but an... hour was a little too long and the balsamic dried to the bottom of the baking dish. Would like to redo and only cook the onions for about 40 min. Very easy and very tasty.Read more
  • recipe Tuna with Roasted Cipolline Onions
    P Redondo Beach, CA 05-07-2008

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    Forget the Tuna - the Onions Rock with Steak!

    Rated: 5 stars out of 5
    I saved this recipe for the onions and made them tonight with Porterhouse Steaks on the Grill and Oven Roasted Asparagus... w/EVOO, S+P and Roasted Garlic Marscapone Carmelized Onion Mashed Potatoes. The Balsamic turned syrupy and made the onions sugary sweet - Yum-o (Sorry Rach)Read more
  • recipe Tuna with Roasted Cipolline Onions
    Pam Minnetonka, MN 03-21-2008

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    Delicious, tasty, and easy!

    Rated: 5 stars out of 5
    What more can I say but.... yummy! The tuna was absolutely delicious and easy along with the cippolini onions. I had... recorded the episode on my DVR and watched it before I made the entire recipe. For the onions, I used 1/3 cup balsamic vinegar and half of that amount for the olive oil. Just remember to put your oven rack at the LOWEST point in the oven. NOT on the top shelf as some here have said otherwise they will burn. The balsamic reduction was wonderful. I thought my husband was going to lick his plate. The polenta was also a hearty and delicious side dish. I couldn't find the quick cooking type so it took me an additional half hour but it still turned out perfect. This recipe is a keeper. Thanks Giada!!!Read more
  • recipe Tuna with Roasted Cipolline Onions
    RACHAEL Charlotte, NC 03-13-2008

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    Listen more carefully

    Rated: 5 stars out of 5
    Just an FYI to those who want to make this dish - do not listen to the people who complained that they listened to Giada and... followed her hint of putting the roasting pan closer to the top of the oven...what she says is to put in in the LOWER part of the oven so they WON'T burn. The dish is very good.Read more
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