In the video, a person is cooking chopped onions in a pan on a stove. The onions are being sautéed in oil, and the person is stirring them with a spatula. The pan is placed on a gas stove, and the flame is visible underneath the pan. The onions are being cooked until they become translucent and soft. The person is continuously stirring the onions to ensure even cooking. The kitchen appears to be well-lit, and the person is wearing a white apron. The onions are being cooked in a large, black pan, and the spatula used is made of wood. The sound of sizzling can be heard as the onions cook.