In the video, a person is seen cutting an onion on a wooden cutting board. The person is using a knife to slice the onion into thin pieces. The onion is purple in color, and the knife is silver with a black handle. The cutting board is placed on a white countertop, and there are three tomatoes visible in the background. The person's hand is visible as they hold the onion and knife, and they are wearing a ring on their finger. The video is shot from a close-up angle, focusing on the action of cutting the onion.