This recipe comes from the Province of Teramo in Abruzzo and the "chitarra" (guitar string-shaped pasta), is made with an 'instrument' that is easy to find in any market in Abruzzo.
700 gr. flour, 6 eggs (1 egg per person), 200 gr. lamb, 200 gr. lean pork, 3 large cartons peeled tomatoes (or 2 one-liter bottles), 50 gr. butter, 1 cup oil, 1 small onion, 1 carrot, salt, plenty of Parmesan cheese.