II
The Method
1
Combine the flour and salt on a work surface or in a bowl. Add the olive oil and rub it in thoroughly until the mixture resembles coarse crumbs. Add 100 ml dry white wine and work the dough, adding further wine in small increments, until a smooth, cohesive, workable dough forms. No water is used. Shape into a ball, wrap, and rest for 30 minutes at room temperature. The dough is ready when it is supple and does not spring back when pressed.
2
On a lightly floured surface, roll the dough to 2 mm thickness — thin enough to be nearly translucent. Cut into strips 2.5 cm wide and 20–25 cm long, using a fluted pastry wheel to produce the traditional zigzag edges on both sides. This is where the dish lives or dies: strips rolled thicker than 2 mm will produce a heavy pastry that neither crisps properly nor absorbs the vincotto. The rolled sheet should be uniform and even; hold it briefly to the light to confirm its thinness.
3
To shape each cartellata: fold a strip back and forth at 3–4 cm intervals, as one would fold a fan, pressing the folds firmly together at the centre after each pass. The completed shape should be a loose, open rose with visible concentric grooves. Press the central join firmly — if the folds are not sufficiently adhered, the rose will open during frying. The finished shape holds together under gentle handling.
4
Heat a generous depth of extra-virgin olive oil in a wide, heavy pan to 175 °C. Fry the cartellate in batches, turning once, until golden and crisp throughout. Remove with a slotted spoon and drain briefly. The pastry is done when it is uniformly deep gold and sounds hollow and dry when tapped against the side of the pan.
5
While the cartellate are still hot from the oil, pour the vincotto — itself warmed — over them generously, ensuring it runs into every groove and fold. Cold vincotto applied to cooled pastry will not penetrate the layers. The dressed cartellate smell of hot grape must and warm fried dough; the vincotto should pool visibly in the concentric channels before being absorbed.
6
Transfer to a rack or tray and allow to cool completely before storing. Pack into sealed ceramic or glass jars. The cartellate keep for 3–4 weeks and improve as the vincotto soaks fully into the pastry over time. The interior layers, tasted after 24 hours, should be softened and deeply flavoured with vincotto while the outermost ridges retain a degree of crispness.