The relaunch of the Wispa bar has helped Cadbury deliver an 11% hike in quarterly revenues from its UK business, but the Birmingham-based group has announced 250 job losses.
The Wispa and a new range of Dairy Milk bars were credited for an "excellent" three months to September 30, with total group revenues up 6%.
Cadbury also announced the loss of 250 jobs, including senior management, under changes to its worldwide operation in a bid to "de-layer" the firm and cut costs.
It is not yet known whether the jobs are in the UK, or if they are additional to the job losses caused by the closure of its site at Keynsham, near Bristol.
Panmure Gordon stockbrokers said the group was on track to achieve sales growth marginally ahead of its forecast of 5.2% for the second half, although much will depend on the Christmas trading period.
Analyst Graham Jones added: "The indulgent appeal of its products and low price points give us confidence that both sales and margins can progress, despite more challenging economic conditions in many developed markets."
Cadbury sold 1.2 million Wispa bars in one week after the relaunch in September. The return of the product, which followed a consumer campaign on social networking sites, was accompanied by the launch of a new range of Dairy Milk bars - Cranberry & Granola and Apricot Crumble.
The company has increased its focus on its core brands, including Cadbury Dairy Milk, Trident chewing gum and Halls cough sweets.
Today's improved UK performance also reflected price rises to cover recent cost hikes, as well as a significant recovery in candy after the same quarter last year was impacted by floods at the company's factory in Sheffield.
Cadbury said commodity and input costs next year were expected to be 6% to 8% higher than in 2008, mainly as a result of higher cocoa costs. It said it was in the process of implementing price increases in most of its major markets in order to cover the cost pressures.
It added: "We are in a period of unprecedented global financial turmoil and it is not possible to gauge with certainty what effect the most recent market turbulence may have on both trade customer and consumer behaviour.
"However, despite these increased headwinds we participate in a resilient category with a strong business model and continue to expect a successful outcome for the year."