Carbonara is a pasta dish made with fatty cured pork, hard cheese, eggs, salt, and black pepper. It is typical of the Lazio region of Italy. The dish took its modern form and name in the middle of the 20th century.
The cheese used is usually pecorino romano. Some variations use Parmesan, Grana Padano, or a combination of cheeses. Spaghetti is the most common pasta, but bucatini or rigatoni are also used. From Wikipedia