Ogliastra, eastern Sardinia — culurgiones are specifically from the Ogliastra zone (Tortolì, Lanusei, Jerzu areas). The preparation is documented from the 16th century in Sardinian sources. The wheat-ear sealing technique is specific to this zone; other Sardinian pasta regions use different closures.
Culurgiones (culurgionis in standard Sardinian, but the name and spelling vary by village in the Ogliastra zone of eastern Sardinia) are the most technically distinctive pasta in Italy — sealed with a specific wheat-ear crimping technique (the chiusura a spiga, or ear-of-wheat closure) that requires considerable practice and produces a distinctive serrated edge running along the length of the pasta. The filling is the defining element: mashed potato with fresh Pecorino Sardo, mint (a generous quantity — mint is the flavour fingerprint), and sometimes a small amount of saffron. Dressed with a simple tomato sauce and aged Pecorino Sardo, they are at once delicate and intensely aromatic.
Culurgiones served with tomato sauce and aged Pecorino — the mint is the first flavour that arrives, clean and vivid against the creamy potato and sharp cheese filling. The pasta itself is firm, from the semolina; the wheat-ear closure holds during cooking so each pasta arrives intact. The mint-Pecorino-potato combination is one of those seemingly unlikely pairings that is immediately and completely right.
Pasta dough: semola rimacinata, water, salt — knead 10 minutes; rest 30 minutes. Filling: boiled and riced floury potatoes (Désirée or similar) mixed with grated fresh Pecorino Sardo, generous chopped fresh mint (spearmint — not peppermint), salt, and a pinch of saffron. The filling should be firm and hold its shape. Roll dough thin (2-3mm). Cut circles (7-8cm diameter). Place a walnut-sized amount of filling in centre. The sealing: pinch the edge between thumb and index finger; fold alternately to create the wheat-ear pattern — this requires practice. The seal must be tight. Dress with simple fresh tomato sauce and generous Pecorino Sardo stagionato.
The wheat-ear sealing technique must be learned by watching an experienced Ogliastran cook — written description cannot convey the hand motion. Videos of the technique are available online and are more useful than any written instruction. The fresh Pecorino Sardo in the filling should be slightly sour — if only aged Pecorino is available, use a smaller quantity. The mint should be added generously: 20-25 large leaves per 300g potato filling.
Loose seal — the wheat-ear crimping is the preparation's iconic technique; a loose, broken seal produces an unsealed pasta that splits in cooking. Filling too wet — the potato filling must be dry; excess moisture prevents proper sealing. Using the wrong mint — spearmint (menta verde) is the traditional variety; peppermint produces a medicinal flavour.
Oretta Zanini de Vita, Encyclopedia of Pasta; Slow Food Editore, Sardinia in Cucina