"Remember this moment: the first time Cadbury revealed a new product on Google+," the brand wrote on its Google+ Page Wednesday afternoon. "The delicious new Dairy Milk Bubbly, available with milk or white bubbles [pictured], will be the first of many we hope!"
About 2,200 people have the brand in their circles.
Cadbury didn't use Google+ exclusively. The brand also tweeted about it. There is currently no mention of the product introduction on Cadbury UK's Facebook Page, which has about 77,000 fans.
Despite the lack of exclusivity, Google was clearly happy to trumpet the news of a major marketer using the platform for something new. Christian Oestlein, the group product manager at Google known as the "Google+ ad guy," relayed Cadbury's message on his G+ profile on Wednesday.
It's unclear whether anyone else has yet introduced a new product on Google+. Facebook became the go-to place for new product introductions after Ford launched its 2011 Explorer there in 2010.