Senise and the Agri Valley, Basilicata. The peperone di Senise DOP is grown exclusively in the area around Senise in Potenza province. The drying tradition (appeso — hanging) is specific to this area and is documented from the 17th century.
The peperone crusco is the signature ingredient of Basilicata: a mild, sweet dried red pepper (Capsicum annuum variety 'Senise', DOP) that is fried briefly in hot olive oil until it puffs and crisps to a brittle, deep-red chip. The frying takes only 20-30 seconds — the high sugar content caramelises immediately. The crusco is used three ways: as a crispy garnish scattered over pasta or dishes; ground into a powder as the primary seasoning in Basilicata cooking (replacing chilli in most preparations); or used as a flavouring oil (the frying oil, now infused with the pepper's sweetness and colour, is used as a sauce base).
The fried peperone crusco tastes of sweet, caramelised pepper with a smoke note and a satisfying crunch that shatters on the palate. The sugar caramelisation during frying adds a depth beyond simply dried sweet pepper. The oil in which it was fried carries a concentrated version of this flavour — one of the most distinctive and versatile flavour oils in southern Italian cooking.
The Senise variety is essential — it has the specific low-moisture, high-sugar profile that allows the brief fry to crisp rather than burn. The peppers must be fully dried (6-8 weeks of sun-drying — the towns of Senise drape them from every building in late summer). Frying technique: heat olive oil to 170°C, drop in the dried whole peppers, fry for 20-30 seconds maximum, remove and drain immediately. They continue to cook from residual heat for 30 seconds after removal — they should be just at the edge of darkening, not burnt. Cool completely before eating — they only become fully crispy as they cool.
The frying oil, after the peperone crusco are removed, is a brilliant ready-made condiment: deep orange-red, sweet, slightly smoky. Toss pasta in this oil alone with a little pasta water for one of the fastest and most satisfying pasta dishes in the southern Italian repertoire. The crusco can be ground (in a food processor when fully cooled and crisp) into a sweet-smoky powder used in place of paprika in any application.
Using any dried pepper other than Senise — other varieties either burn immediately or don't crisp at all. Over-frying — the pepper's sugar burns quickly after the 30-second window; there is almost no margin. Eating before fully cooled — they remain leathery when warm; the crunch develops only on cooling. Not using the oil — the pepper-infused frying oil is a sauce ingredient of enormous flavour.
Slow Food Editore, Basilicata in Cucina; Giorgio Locatelli, Made in Italy