The confection was created to celebrate a recent milestone: 500,000 "circlers," or fans.
Cadbury chronicled the construction of its edible Google+ page through a series of 10 step-by-step photos, shown in the gallery below.
Layers of Cadbury Dream and Dairy Milk chocolate were applied to a base of Dairy Milk bars. Edible inks were printed onto sugar paper to create detailed replicas of the Page's buttons and photos of fans. Pieces were adhered using liquid Dairy Milk as a kind of glue. Text was applied by hand with edible ink.
The company also invited followers to chime in and watch live as the finishing touches were applied through a Google+ Hangout.
Many brands have created Google+ pages since Google introduced branded profiles in November. But few marketers have given the platform the same degree of attention they've lavished on their Facebook, Twitter, or even Tumblr and Pinterest accounts.
There are, of course, exceptions, and Cadbury UK is one of them.
The company posts to its Google+ page several times per day. Much of that content is cross-posted to Facebook, but experiences like this one do make followers feel important, the number of comments and +1s suggests.
The base is made up of one kilogram of milk chocolate.