Chef John's Three Corn Polenta

""When I first began my career as a cook in San Francisco, I remember talking with a Chef about an upcoming menu on which he was thinking of using polenta as the side dish. I asked him if he was talking about polanda. He said he'd never heard of polanda. I called my mom and told her we were going to serve something called polenta at the restaurant. I asked her if she had ever heard of it. She laughed and said that they were the same things! She explained that 'pol-an-da' was just our family's mispronunciation of the actual name polenta. I was pretty embarrassed, to say the least!"..."