Crunchie
Crunchie is a brand of milk-chocolate-covered sponge toffee (hokey pokey/honeycomb) made by Cadbury. It is sold in several sizes, ranging from "Snack size" - a small square piece - through to "King Size". The most common of which is a single-serve bar. It is unknown whether Cadbury ever produced a Mr Big size Crunchie.
In Australia and New Zealand, the Crunchie bar is widely known for having the country's longest-running television advertisement, which won many awards and ran in unchanged form for over 20 years from the late 1970s.