I am learning how to make chicken tikka masala. Here is the video: https://www.youtube.com/watch?v=_weLAzB1nFk.
In this video he adds water many times to the curry. Many of the other videos I watched I did not see them do this.
What is the effect of the water? Does it prevent the ingredients from burning, and then cook off by itself? Doesn't it dilute the flavor? If the heat is too high, can you reduce the heat and forgo using the water?