In the video, a person is using a piping bag to apply pink frosting to a cupcake. The cupcake is placed in a white paper cup and is being held in the person's left hand. The person's right hand is holding the piping bag and squeezing the frosting onto the cupcake. The frosting is applied in a circular motion, starting from the center and moving outwards to create a decorative pattern. The person's nails are painted pink, matching the color of the frosting. The background is blurred, but it appears to be a kitchen setting with white cabinets and a window.