At the time Cadbury's US parent Mondelez also owned Vegemite but has since sold the brand to Bega Cheese.
"Vegemite is one of the favourite combinations we've done and this is the next in line of unusual flavour combinations," Ms Watson told news.com.au.
"We know Aussies love chocolate and trying new things so we've brought these disruptive flavours to the market which combine sweet and salty, crunchy and smooth."
"They're amazing, an unexpected sensation. They deliver something completely different — you can actually hear the crunchiness of the chips when you're eating it."
Paul Chatfield, Associate Director Everyday Chocolate at Mondelēz, told the Herald that while there are no immediate plans to launch the flavours in New Zealand, there is still hope.
"While we don't have plans to launch Cadbury Dairy Milk with Kettle Sea Salt and Cadbury Dairy Milk with CC's at this stage, you can never say never! Cadbury delivered the most popular food launches in New Zealand in 2016 and 2017 thanks to Cadbury Dairy Milk with Oreo Vanilla and Cadbury Caramilk, and we're working hard to continue bringing Kiwis new products we think they'll love."