In the video, a person is seen decorating a cupcake with pink frosting. The cupcake is already frosted and the person is using a red piece of fondant to create a flower. The person is seen rolling the fondant into a ball and then flattening it out to create a petal-like shape. They then use a tool to create a small indentation in the center of the fondant and place it on top of the cupcake to create a flower. The person then uses a small tool to add details to the center of the flower to make it look more realistic. The video ends with the person showing the finished cupcake with the fondant flower on top.