In the video, a person is cooking onions in a pan. The person is using a spatula to stir the onions around the pan. The onions are white and appear to be in the process of being sautéed. The pan is black and is placed on a stove. The person is continuously stirring the onions, ensuring they are evenly cooked. The onions are being cooked over a medium heat, as indicated by the sizzling sound. The person appears to be experienced in cooking, as they are handling the spatula with ease and precision. The kitchen in the background is well-lit and appears to be clean and organized.