Using frozen corn kernels immediately after they are frozen might be the best way to crush them them. At least, that is what I have found so far to be the case. If you wait until they are thawed, they can get a bit more rubbery. But I really haven’t tried it yet. This is a new discovery for me and there is room to expand options and choices.
I almost feel like the guy who invented peanut butter. You simply crush until it’s a complete creamy texture, which is very nice to consume.