The video shows a close-up of a person's hand holding a piping bag with a star-shaped nozzle. The person is using the piping bag to apply a swirl of light blue frosting onto the top of a cupcake. The cupcake is in a silver foil cupcake liner and is placed on a metal cooling rack. There are several other cupcakes in the background, some with green and red liners. The frosting is applied in a circular motion, starting from the outer edge and moving towards the center, creating a rose-like pattern. The video is shot in a well-lit room, and the focus is on the cupcake being decorated.