Meanwhile, heat the olive oil in a medium pan over a medium-high heat and add the garlic. Fry for a minute, then tip in the tomatoes and wine. Bring to the boil, mashing the tomatoes, stir and then turn down the heat slightly. Add a pinch of sugar, a little seasoning and the oregano, and simmer gently for 45 minutes, stirring occasionally. Puree until smooth.
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