This year it has introduced the Cadbury Ghooost Egg, which includes a competition offering consumers the chance to win one of 50 family tickets to Alton Towers Scarefest.
And the Cadbury Crunchy Spider returns this year.
Mondelez says that to get the best from Halloween retailers should stock a targeted range of best-sellers and avoid over-cramming the fixture.
A spokesperson said: “With Halloween being a shorter season, we recommend a really tight range. Clear segmentation and signposting on shelf will help boost sales.
“Spook your customers with fangtastic counter display and on the day, or a few days before, why not create some extra theatre and get your staff to dress up.”
Cadbury Ghooost Egg has an RRP of 62p and is available in cases of 48. The RRP for the Crunchy Spider is 65p and it comes in cases of 26.