Black Magic is a British brand of boxed chocolates originally created by Rowntree's in 1933.

[1] Sold as an affordable version of an (at that time) otherwise very expensive luxury product, they were marketed as a courtship gift.

[2] In the 1970s, the brand was advertised using the slogan "Who knows the secret of the Black Magic box?

"[1] Christopher Gunning wrote the music for the iconic series of advertisements that ran on British television from 1971 well into the 1980s.

[3] This article about a company of the UK is a stub.