All you need is a small bowl and a spoon here; your kid will do the rest. But you have some additional options to expand/extend its use, including dipping chunks of bread in the soup or adding bits of protein–say, salmon or tofu–into the bowl to encourage your child to eat them (and for the soup to cover them up).
It’s typical for corn chowders to be filled with, well, chowder-y things: potatoes, vegetables (peppers, celery, etc.), even proteins. To do so here, sauté your chosen extras for 4-5 minutes in a separate pan, then add to the soup pot when simmering the broth (step #6).