The English spelling of what Italians call maccheroni. There's an interesting etymology here. A legend says that an early Italian sovereign was so impressed by the taste of this form of pasta he exclaimed "Ma caroni!", meaning "How dear!". In 18th century England, macaroni was synonymous with perfection. This explains that line from the song Yankee Doodle: "...stuck a feather in his cap and called it macaroni." There's also a small version of macaroni called ditalini.