Seared Tuna With Sweet Balsamic Onions

READY IN: 20mins
Recipe by Recipe Reader

from Williams Sonoma's Cooking Basics. Seared tuna is rare on the inside, so it is always moist and delicious.

Top Review by MsPia

I loved the onions, but paired with the tuna made the dish a little bland. I think the tuna needs a little kick of spice to make a nice balance with the sweet onions. Thank you Recipe Reader.

Ingredients Nutrition


  1. Heat 1 tablespoon of oil in a large skillet over medium heat.
  2. Add the onion and sprinkle with sugar.
  3. Sautee about 10 minutes, until light brown and soft.
  4. Season with salt and pepper, and add the red wine vinegar. Cook 1-2 minutes, until most of the liquid evaporates.
  5. Add balsamic vinegar and cook for about 30 seconds.
  6. Transfer to a bowl.
  7. Wipe out pan and set over medium high heat, and add 1 tablespoon oil.
  8. Season the tuna with salt and pepper.
  9. When oil is hot, add the tuna steaks and sear for about 1 1/2 minutes on each side for rare.
  10. Top each tuna steak with 1/4 of the onion and garnish with chopped parsley.

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