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 cutting board is placed on a white countertop, and there is a glass bowl with red contents in the background. The person's nails are painted with a light pink polish, and they are wearing a black shirt. The onion is white, and the knife is silver. The person's hand movements are steady and precise as they cut the onion.