You’ve undoubtedly heard of, and probably even tasted, fettuccine Alfredo. Chances are, the version you’ve tried was loaded with cream, which is far from the original recipe that was invented in Rome. Since 1914, Alfredo Alla Scrofa has been serving fettuccine con burro e parmigiano—fresh pasta with butter and parmesan—to Romans and celebrities alike. The dish was born out of necessity: owner Alfredo’s pregnant wife was having trouble eating, so he did what any decent husband would and essentially made the best buttered noodles ever. The restaurant’s fettuccine is paper-thin, perfectly cooked, and bathed in a rich sauce prepared tableside. Save this one for lunch on your second or third visit to Rome, after you’ve worked your way through the classics. Enjoy the pasta alongside a side of chicory greens for a pleasantly bitter contrast to the richness.