Mr. Blaster:


Blow off with compressed air, quick rinse with boiling water, coat with Crisco shortening. Set in the oven 300-350 for an hour, let it cool, wipe out any excess with a lint free towel. Put to use.

I've got two cast iron pans (from China no less-probably has USA scrap iron content), that are perfectly seasoned and require little if any cleaning after use.