Sunday gravy may be the most indelible image of Italian-American culture. Sunday gravy – also called Sunday sauce — is a meat and tomato sauce served over pasta and a staple of home cooking in American cities with a large Italian immigrant population. A vat of sauce overflowing with sausage, meatballs, ribs, or whatever else your family told you was essential to making it, it's not a subtle dish. Instead, it's a weekly celebration, an embrace of bounty, and a tribute to the joy of food in one pot. Sunday gravy is also a classic family dish, not only because...