In the video, a person is seen using a wooden spoon to stir a pot of boiling water. The person then proceeds to add a black substance to the pot, which is likely a type of food ingredient. The substance is stirred into the boiling water, and the person continues to stir it until it is fully dissolved. The video provides a close-up view of the pot and the stirring action, allowing the viewer to see the details of the substance being added and the way it reacts with the boiling water. The person's movements are deliberate and careful, ensuring that the substance is evenly distributed throughout the pot. Overall, the video provides a detailed and informative look at the process of cooking with boiling water and a black substance.