Who created god and who created the people that created god

There has been several theories of the fact that anything that exists has something that caused it. For example food has a cook, music has a music artist who brings it to life.

Similarly just like the theory of big band which states a big bang created this universe, who created God. As Aristotle said there can be things that cause other things to happen but itself is uncaused. God is in that category of uncausation.