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Lebanese-Style Fish with Tahini-Lemon Sauce

This Lebanese-style fish with tahini-lemon sauce pan-sears white fish, then tops it with deeply caramelized onions and a tangy tahini-lemon sauce known in Lebanon as samak bi tahini, ready in 40 minutes. Lemon does double duty here, cutting through the richness of the tahini and balancing the sweetness of the slow-cooked onions until the whole plate tastes exactly as bright as it looks. Serve it alongside our lemon vinaigrette roasted vegetables to round out the meal.

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Quick answer: Pan-seared white fish topped with deeply caramelized onions and a tangy tahini-lemon sauce, known in Lebanon as samak bi tahini. Finished with toasted pine nuts and a pinch of sumac, ready in 40 minutes.

A whole roasted white fish on a platter, topped with deep golden caramelized onions, drizzled with pale tahini-lemon sauce, scattered with toasted pine nuts and parsley
Prep15 min
Cook25 min
Total40 min
Serves4 servings
PPin

Instructions

1

Season the fish with salt and pepper. Pan-sear in a little oil over medium-high heat, about 3-4 minutes per side, or bake at 400°F (200°C) for 15-18 minutes until just cooked through.

2

Meanwhile, caramelize the sliced onions in olive oil over medium-low heat, stirring occasionally, for 15-20 minutes until deep golden brown.

3

Make the tahini sauce: whisk tahini, lemon juice, minced garlic, and a pinch of salt together. It will seize into a thick paste at first, keep whisking and add water a tablespoon at a time until smooth and pourable.

4

Toast the pine nuts in a dry skillet over medium heat until golden, 2-3 minutes, watching closely so they don't burn.

5

Plate the fish, top with the caramelized onions, drizzle generously with the tahini-lemon sauce, then scatter with pine nuts and parsley. Finish with a pinch of sumac if using.

Zesty Tip: Tahini seizes up into a thick paste the moment you add lemon juice, before it loosens into a smooth sauce. Keep whisking through that stage and add water gradually, it always comes together.

Questions people actually ask

What fish works best?

Firm white fish like snapper, cod, tilapia, or sea bass all work well. Use fillets for a quicker weeknight version or a whole fish for a more traditional presentation.

Can I make the tahini sauce ahead?

Yes, it keeps in the fridge for up to 4 days. It'll thicken as it sits, just whisk in a splash of water to loosen it before serving.

What is sumac and can I skip it?

Sumac is a tangy, lemony ground spice common in Levantine cooking. It's worth seeking out for the authentic finish, but the dish is still good without it.

Can I bake the fish instead of pan-searing?

Yes, bake at 400°F (200°C) for 15-18 minutes depending on thickness, until it flakes easily with a fork.

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