Tuna with Roasted Cipolline Onions

  • Level: Easy
  • Total: 31 min
  • Prep: 30 min
  • Cook: 1 min
  • Yield: 6 servings
Share This Recipe

Ingredients

Directions

  1. 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. 
  2. Preheat the oven to 450 degrees F. 
  3. 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. 
  4. 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. 
  5. 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.

Fudge Factor

Chocolate Desserts

Indulge in our decadent chocolate desserts, from cookies and cakes to puddings, souffles and truffles.

Over-the-Top-Delicious Treats to Satisfy Your Food Obsession

Are you infatuated with ice cream? Do you lust over lobster? Swoon at the sight of chocolate? Here's the best recipe for each food …

How-To: Chocolate Cream Puffs

Make this classic and elegant French dessert using our step-by-step guide.

Review: Anthony Bourdain and Eric Ripert's Chocolate Bar Nov 16, 2012

Anthony Bourdain and Eric Ripert have teamed up with master chocolatier Christopher Curtin to create the "Good & Evil" chocolate b …

Easy Gift Idea: Chocolate-Covered Toffee Feb 7, 2013

Looking for an easy gift idea? Cooking Channel's recipe for Chocolate-Covered Toffee is just the ticket. A touch of coffee in the …

How to Make Truffles

Learn how to make a chocolate lover's favorite treat: the classic truffle made from smooth chocolate ganache.

Essentials: Chocolate Basics Sep 1, 2016

Satisfy that chocolate craving in your very own kitchen. All you need is baking chocolate and a little know-how. It also helps to …

Nostalgic, Old-Fashioned and Retro Candy and Candy Bars

Take a sweet trip down memory lane by ogling these old-school candy bars and confections.

How to Chop and Melt Chocolate

Lots of recipes call for melted chocolate. Follow these step-by-step instructions to do it properly.

Valentine's Day Four-Ingredient Dessert Feb 12, 2013

By: Cameron Curtis

The best part of this Valentine's Day dessert? It requires only four ingredients: chocolate, butter, eggs and sugar.

The Craziest Chocolate Creations for American Chocolate Week Mar 17, 2013

It’s officially American Chocolate Week. Check out photos of mind-blowing chocolate creations.