1974 advert for Rolos.

Rolo (pronounced “Roll-Oh” in the U.S. or “Roh-loh” in the U.K.) is a brand of truncated-cone-shaped chocolates with a caramel centre. They are made by Nestlé, except in the United States where production has been under licence by The Hershey Company since 1969. They were advertised for many years with the slogan “Do you love anyone enough to give them your last Rolo?”.

History

In the UK, they are currently made at Fawdon in Tyneside by Nestlé Rowntree. They were first made originally in 1937 by Mackintosh^[1] (later Rowntree-Mackintosh).^[2] Mackintosh’s Toffee was coated with chocolate. Production was also carried out at Norwich until 1994 when that factory was closed. There have now been Rolo cookies, ice-cream, muffins, birthday cake, desserts, cake bars, mini Rolos, big Rolos, (all of which use the same type of caramel) yogurts and Easter eggs made.

Info gleaned from Wikipedia