大象传媒

The famous ice cream dessert Viennetta is celebrating its 40th birthday this year.

The family favourite was created in Gloucester as a one-off Christmas product in 1982 - 40 years later it's still going strong.

It's also been 100 years since Walls ice cream began production.

In this clip, 大象传媒 Radio Gloucestershire's Dan Ayers takes you behind the scenes at the Walls factory in Gloucester.