The video shows a close-up of a cupcake being decorated with white icing. The icing is piped onto the cupcake in a circular motion, starting from the center and moving outwards to create a swirl pattern. The cupcake is placed on a white surface, and the icing is applied using a piping bag with a round tip. The video is shot in slow motion, allowing viewers to see the intricate details of the icing process.