Tuna with Roasted Cipolline Onions

Recipe courtesy Giada De Laurentiis

Show: Everyday ItalianEpisode: Friend in Town

Rated: 4 stars out of 5Rate itRead users' reviews (32)

RECIPE
COMMENTS & REVIEWS(32)

Cook Time:
1 min
Level:
Easy
Yield:
6 servings

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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Comments & Reviews

recipe Tuna with Roasted Cipolline Onions
cathleen aliso viejo, CA 03-06-2010
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Delicious
Rated: 5 stars out of 5

Loved these onions! The sauce was just wonderful. Mine didn't burn, but I check my food often while cooking because cooking... times in recipies are always estimates because everyone's ovens are different. Mine were done in about 45 minutes so I took them out. I used a small ceramic baker lined with foil. Oh, and as someone else said, heat rises and collects at the top of your over. I've found that items cooked on the top rack will dry out and burn faster. But again, ovens vary. I cooked these on the lower rack with great results Read more
recipe Tuna with Roasted Cipolline Onions
Lani Moses Lake, WA 02-15-2010
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Once not an onion believer, now a Cipolline lover!
Rated: 5 stars out of 5

I don't eat onions, but my husband does so I decided to try it, what a great idea I tell you! The Cipolline onions are... Delicious! yes, this is coming from a non onion eater! You have to try them! On the other hand I didn't have tuna so I made chicken breasts instead and also didn't have much herbs so used cilantro for the marinade, it was delicious!!!! may try the real recipe in the future, but hubby was super happy with me and the meal this time :) Definitely a have to, specially since it is sooo easy and simple to make :)Read more
recipe Tuna with Roasted Cipolline Onions
Summer Cadiz, OH 12-18-2009
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I haven't made it
Rated: 5 stars out of 5

I haven't made it yet but i am tonight! I just spent 30 min. on here looking for this recipe! I was sooo excited when i found... it! I really hope we have baby onions at our market.....i think thats what makes it look delicious! I watched you make this last night and i was about to eat the tv screen!!! OMG i can't wait to make it!! :)Read more
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