She replaces Nick Fell, the former Diageo marketer who was recently promoted to president of global commercial strategy after 18 months as marketing director, and will report to UK managing director Simon Bowdery.
Cooke will oversee a UK advertising budget of more than £21m. Once Cadbury has integrated its recently acquired Adams confectionery business into its UK operations, Cooke will take the reins for brands such as Bubbaloo, which currently have a marketing budget of more than £3m.
Cooke joined Cadbury as a graduate trainee in 1986. She has worked in various departments, including finance, logistics and marketing, and most recently was head of commercial strategy for Trebor Bassett. She has overseen various confectionery brands including Butterkist popcorn, Fundays variety packs and Extra Strong Mints.
Euro RSCG Wnek Gosper is the global roster agency for Cadbury's sugar products, and in November, the company handed its global £30m chocolate advertising account to Publicis.