The grapefruit is a subtropical citrus tree known for its relatively large, sour to semi-sweet, somewhat bitter fruit. The interior flesh is segmented and varies in color from pale yellow to dark pink/red. Grapefruit is a citrus hybrid that originated in Barbados in the 18th century.

Carbonara is a pasta dish made with eggs, hard cheese, fatty cured pork, and black pepper. The dish took its modern form and name in the middle of the 20th century. The cheese is usually pecorino romano. Some variations use Parmesan, Grana Padano, or a combination of cheeses.