So here is the pan I posted about a couple days ago. I put the pan in the oven and ran the self-cleaning cycle. When it came out I cleaned off the ash and I could actually tell that some of the texture around the edge was the metal and not food. The rest of the gunk was gone.
I put a very thin layer of canola oil on it and baked it at 450 for an hour. It looks beautiful now. I’m going to do a couple more seasoning cycles and then try to maintain it.
Thanks everyone for the advice!
Very nice. Looks like you got the oil thin enough (as Cooks Country would say, so thin it's almost not there).
A few more rounds and it'll be a solid layer.