Eckhart Tolle explains how to work with anger by recognizing it as energy and understanding the pain body. He teaches a mindfulness technique to observe anger without being consumed by it, using awareness to create space between you and the emotion.
See if you can have an awareness. It's not easy with anger because it comes so suddenly. Whether you can have an awareness, not only that there's the energy of anger flowing through you, but also perhaps that the energy of anger, which may be old anger that has lived in you for a long time, pain body, I call it, which can easily then rise into your mind and control your thoughts. Are you able to stay aware while it happens and recognize anger as an expression of the pain body? And if you are thinking angry thoughts, to realize that these are the thoughts of anger. Anger is thinking these thoughts. They are not true. So they are simply thoughts that reflect the energy field of anger.