Black Magic is a British brand of boxed chocolates originally created by Rowntree's in 1933. The brand is now owned by Nestlé.[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]