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Tonno in agrodolce

Name: Castruriali olive groves, Castroreale
Address: Castroreale, Sicily, IT

CKContributed by The Castruriali Kitchen · Castroreale

Serves 4

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Ingredients

0 of 8 ready

Step 1

Cook the onions. Cook the onions in 4 tablespoons of oil with a pinch of salt over a low heat, covered, for 20 minutes until very soft and sweet.