What year was the Everlasting Gobstopper first introduced by Breaker Confections?

The Everlasting Gobstoppers, sold under Nestlé's Willy Wonka Candy Company brand, were first introduced in 1976 by Breaker Confections, and are named after the Everlasting Gobstoppers in Roald Dahl's children's book Charlie and the Chocolate Factory. In Dahl's story, Everlasting Gobstoppers are purported to last forever. Dahl named the sweet after Gobstoppers, which were a favourite among British schoolboys between the two World Wars. As a young boy in the early 1920s, Dahl put a dead mouse into a jar of Gobstoppers in his local sweet shop, which is commemorated with a blue plaque.

Gobstoppers are made by slowly depositing layers onto a core (such as a pressed ball of sugar or a gumball). Gobstoppers are made in large, rotating, heated pans. This is called "hot panning". The candies take several weeks to manufacture, as the process of adding liquid sugar is repeated multiple times. Natural and artificial colors and flavors are also added during the panning process.