The giant cake, measuring 16.46 metres long by 13.94 metres wide, was decorated with a map of Italy and its most famous monuments. It had a total surface area of 244 square metres and weighed more than a tonne, Ansa reported.
The cake was made with a a large sponge base, topped with icing sugar. This was then decorated with intricate, icing sugar models of Italy's major landmarks, including the Leaning Tower of Pisa and the Alps.
The cake was created by 300 bakers and designers from Italy's National Association of Cake Designers during the Hobby Show at the Milan Trade Fair on Sunday.
Bakers and designers worked tirelessly for four days to complete the impressive dessert, before Guinness Judge, Lorenzo Veltri officially confirmed it as the largest cake sculpture ever.
One proud Twitter user tweeted a pic of the final result.“My girl has set the Guinness record for the world's largest cake,” he beamed.