Sweet and Sour Tuna

    40 min

    This Sicilian dish is a great way of stocking up on omega-3 fatty acids. Fresh tuna steaks are pan-seared and topped with a sweet and sour caramelised onion sauce.

    30 people made this

    Serves: 4 

    • 3 tablespoons olive oil
    • 1 large onion, cut into chunks
    • 4 tuna steaks
    • 250ml red wine vinegar
    • 200g sugar

    Prep:5min  ›  Cook:35min  ›  Ready in:40min 

    1. Heat olive oil in a heavy-bottomed frying pan over medium heat. Stir in the onion; cook and stir until the onion has softened and turned translucent, about 5 minutes. Reduce heat to medium-low and continue to cook and stir until the onion is very tender and dark brown, 15 to 20 minutes more. Remove the onion from the frying pan.
    2. Place the tuna steaks in the same frying pan over medium-high heat and cook until golden brown, about 2 minutes per side. Remove the tuna steaks to a serving plate; keep warm.
    3. Stir the vinegar and sugar together in the same frying pan until sugar is dissolved. Return the onions to the pan and simmer until the liquid reduces and is slightly thickened, about 5 minutes. Return the tuna to the pan and cook for 3 to 5 minutes. Place the tuna on the warm serving plate and top with the onion and sweet and sour mixture.

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    Reviews in English (22)


    Love, love, love this recipe. The sweet and sour sauce is absolutely delicious and makes a lovely addition to the tuna steaks. I serve mine with rice and green beans, seems to work well with the sauce.  -  10 Aug 2013


    This was reallllllllyyyy good! Even just the basic recipe it's good. I threw in a little bit of garlic and some marjoram into the mix and that made it extra flavorful. I would imagine that you add just about any herb and it would not spoil it. Fantastic.  -  02 Jul 2010  (Review from Allrecipes US | Canada)


    This was a great meal. I made it with salmon instead, due to the lesser cost of salmon, and I only used 3 steaks. I'll make it again. Next time I will serve this dish with Roquefort Pear Salad.  -  03 Apr 2009  (Review from Allrecipes US | Canada)