The video shows a person cutting an onion on a cutting board. The person starts by cutting the top off the onion and then proceeds to slice it into thin pieces. The cutting board is placed on a wooden table, and there are three white bowls in the background. The person's hands are visible, and they are using a large knife to cut the onion. The onion is white and appears to be fresh. The person's movements are precise and careful as they slice the onion into even pieces.