I couldn't resist teasing @The Late Night Gourmet. All we got down here was a bad movie. Friday Night Lights. (The only thing accurate was Tim McGraw's character. ) Reminds me, I need to post again in the childhood thread.I've been to Detroit, and while it is in bad shape, I found some good restaurants and music clubs.
It definitely has soul.
I also use that one for polenta, although I usually buy Bob's Red Mill brand. I let it cook and stir and cook and stir, and add water when it's thickening up, then stir and cook some more....The yellow grainy one is cornmeal. Used for cornbreads, batters and other stuff...
Is it ground corn or cornflour like in the UK?
If it is the thickener, that will not work.
You need something like the first two shown here.
https://www.walmart.com/c/kp/corn-flour
The next one is for making cornbread and the fourth one is the thickener which is referred to as cornflour in the UK.