Add crushed tomatoes and bring heat to a boil, then reduce heat and simmer very slowly, partially covered, for about 2 to 4 hours, stirring occasionally to prevent sticking. The longer the better!
About 5 to 10 minutes before serving, add milk. Combine freshly cooked pasta and sauce over very low heat and allow pasta to soak up the sauce, a few minutes.
Combine pasta and sauce over very low heat and allow to soak up the sauce for a few minutes.