Cadbury Australia is about to bring out its most unusual flavour combination since someone thought it was a good idea to stuff gooey Vegemite into Dairy Milk bars.

From next Wednesday, August 15, for a very limited time, Aussies will be able to buy Cadbury Dairy Milk filled with potato chips.

The two flavours, released to coincide with the footy finals, are CC's Original corn chips and sea salt Kettle Chips. The company said you can hear the crunch of the crisps when you bite into the bar.

Cadbury marketing manager Kate Watson told news.com.au the new flavours were "disruptive" and "unexpected" but predicted they would win legions of fans due to their sweet saltiness.

She said Dairy Milk with CC's or Kettle Chips was the most out there flavour since 2015's Cadbury Vegemite marriage. It raised eyebrows but was massively popular with the confectioner selling 1.2 million bars.

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."

It's unclear whether these flavours will make their way across the ditch to New Zealand.