Traditional Italian recipes use guanciale, or dried pork cheek, though in the States it's easier to find pancetta or ...
Pasta comes in many shapes, but it's not because Italians just like the aesthetics. Pasta types match up with pasta sauces.
This unique creamy sauce is associated with Italian-American cuisine, which is made with butter, heavy cream, Parmesan cheese, herbs and seasonings that give this pasta a smooth and velvety texture.