60′s uk commercial for Frys Crunchie
Crunchie is a milk chocolate bar with a “honeycombed” sugar centre. It is made by Cadbury UK and was originally launched by J. S. Fry & Sons in 1929. Fry had merged with Cadbury in 1919 and Crunchie later became a Cadbury brand.

Size etc
Cadbury Crunchie is sold in several sizes, ranging from “snack size” – a small square piece – through to “king size”. The most common portion is a single-serve bar, about 1 inch wide by about 7 inches long, and about 3/4 of an inch deep.
In the early 2000s there were a range of limited edition Crunchies on sale in the UK. These included a lemonade bar, a champagne bar and a Tango Orange bar, in which the chocolate contained the different flavourings. The champagne-flavoured bar was initially launched for New Year’s Eve 1999.