The video shows a person using a piping bag to decorate a cookie. The piping bag has a teal-colored icing inside. The person starts by outlining the cookie with the icing and then fills in the outline with more icing. The cookie appears to be shaped like a bottle of milk. The person's hand is visible holding the piping bag, but their face is not shown. The background is white, and there are no other objects or people visible in the video.