Fileja alla 'nduja is Calabria's defining pasta dish—hand-rolled, corkscrew-shaped fresh pasta tossed in a sauce where 'nduja (the spreadable, fiery salame from Spilinga) melts into a rich, spicy, pork-fat-and-tomato emulsion that coats every spiral of the pasta with an intensely savoury, chile-red sauce. Fileja (also fileja or filatieddi) is Calabria's signature pasta shape—made from flour and water (no egg), rolled by hand around a thin rod (a ferro, traditionally a knitting needle or a squared-off skewer) to create a hollow, spiralled shape that traps sauce in its grooves and hollows. The 'nduja sauce is beguilingly simple: olive oil, a clove of garlic (removed), a generous spoonful of 'nduja stirred in and allowed to melt and dissolve in the hot oil, a splash of white wine, then crushed tomatoes simmered briefly. The 'nduja's pork fat and chilli pigment melt into the tomato, creating a sauce that is simultaneously creamy from the fat, spicy from the Calabrian peppers, and bright from the tomato. The fileja, cooked al dente, is tossed directly in the sauce with a splash of pasta water to emulsify. A shower of aged ricotta salata (not pecorino—this is Calabria) finishes the dish. The combination of the chewy, textured fileja and the rich, spicy sauce is one of southern Italy's great pasta experiences. Fileja-making is a communal activity in Calabria—women gather to roll dozens at a time, the rhythmic motion of wrapping dough around the ferro a meditative, social act.
Hand-rolled fileja pasta around a thin rod (ferro). Flour and water, no egg. Melt 'nduja in olive oil with garlic. Add tomato and simmer briefly. Toss pasta in sauce with pasta water. Finish with ricotta salata (not pecorino).
The ferro for rolling fileja should be about 3mm diameter—a metal knitting needle works perfectly. Roll the dough pieces at a 45-degree angle to create the spiral. The 'nduja should be at room temperature for easier melting. Save extra starchy pasta water—fileja releases a lot of starch that helps the emulsion.
Using dry pasta (fresh fileja's texture is essential). Not melting the 'nduja completely (it should dissolve into the sauce). Adding cream (the 'nduja fat IS the cream). Over-cooking the tomato (should be brief—15 minutes max). Using pecorino instead of ricotta salata.
Oretta Zanini De Vita, Encyclopedia of Pasta; Touring Club Italiano, Calabria in Cucina