Maccheroni alla chitarra
Spaghetti alla chitarra , also known as maccheroni alla chitarra, is a variety of egg pasta typical of the Abruzzo region of Italy, with a square cross section about 2–3 mm thick. Tonnarelli are a similar pasta from Lazio, used especially in the Roman cacio e pepe. Ciriole, traditionally from Molise, is the thicker version of chitarra, approximately twice the thickness of spaghetti. Because the pasta are cut from a sheet rather than extruded through a die, spaghetti alla chitarra are square rather than round in cross-section. The name of this spaghetti comes from the tool (the so-called chitarra, lit. 'guitar') this pasta is produced with. This tool gives the spaghetti its name, shape, and a porous texture that allows pasta sauce to adhere well to the pasta itself. The chitarra is a frame with a series of parallel wires crossing it. The origin of the chitarra is still not very clear, though a traditional recipe from the province of Teramo originated in the early 1800s or even before. It is also claimed that the chitarra originated from the province of Chieti. Before then, pasta was cut with a special rolling pin with notches to obtain its particular shape. Although its origins are from Abruzzo, you can find different versions and names in the southern part of Italy. It gets the name of tonnarelli in Lazio, torchioli, troccoli, or truoccoli in Basilicata and Apulia, or cirioli molisani in Molise.
Source: Wikipedia