I have a 17" deep dish cast iron. I've only used it 3rd time.
After using it for the 3rd time, there was a lot of rust. (No picture).
To get rid of the rust, I tried coating it in olive oil, and putting it in the oven for 1 hour at 350 degrees.
Prior to that, I had also scrubbed it with a chain mail scrubber.
It got rid of the deep rust, but in some ways, it looks worse than before. Most of the pan still isn't a black color, like it was before using it for the 3rd time.
What should I do? What process should I follow?