In the video, a person is shown mixing a batter in a glass bowl using a whisk. The batter appears to be thick and has a yellowish color. The person is vigorously whisking the batter, ensuring that it is well mixed. The glass bowl is placed on a surface, and the background is not clearly visible. The person's hands are not visible in the video, so it is unclear who is doing the mixing. The whisk being used is made of metal and has a long handle. The video does not provide any information about the ingredients used in the batter or the purpose of the batter.