First manufactured in Norwich, Norfolk in the United Kingdom by Mackintosh's in 1937 (followed by Rowntree's after the takeover in 1969), they are made by Nestlé (except in the United States, where production has been licensed to The Hershey Company) A long-running British advertising slogan for the brand was "Do you love anyone enough to give them your last Rolo?

"[1] A YouGov poll saw Rolo ranked the eleventh most popular and seventeenth most famous confectionery in the UK.

[2] The Rolo product was developed in England by Mackintosh's,[3] (later Rowntree-Mackintosh), simply a combination of caramel and a chocolate coating.

[4] In 1956, the New England Confectionery Company acquired a licence to produce Rolos in the US.

[8] In the UK Rolos are produced at Nestlé's Fawdon factory in Newcastle upon Tyne.