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.

    28 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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