Make the pasta, adding the eggs to the flour with salt and just enough oil to make it smooth. Knead very thoroughly for 5 minutes in a food processor, 15–20 minutes by hand.
To make the filling, fry the pancetta or fat in half the butter then add the onion and garlic. After 5 minutes, add the meat and fry for 5 minutes. Add the chicken giblets, chopped breast and breast bone, and wine a