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6
Medium
By Ann Taruschio and Franco Taruschio
Published 1993
In a frying pan, heat the olive oil and add the onion, the scraps of Parma ham, thyme and bay leaf. Add the tomatoes, season with salt and freshly ground black pepper and a pinch of sugar.
Leave to cook for half an hour, stirring from time to time. Pass the mixture through a sieve and check seasoning.