Pasta, guanciale (a kind of cured pork), egg yolks, Pecorino cheese and black pepper. Real pasta carbonara is made with just these ingredients and, as you can see, cream isn’t one of them. This famous recipe from Lazio gets its smooth, creamy texture from egg yolks, salt, pepper and Pecorino cheese away from the cooker: the heat of the pasta should be enough to melt it.