This Creamy New England Clam Chowder can easily be made gluten-free by ensuring that all ingredients are certified gluten-free. Most traditional chowders use flour as a thickener, but this version relies on potatoes for a naturally creamy texture, making it inherently gluten-free. Simply double-check that the clam juice, bacon, and oyster crackers (or omit them) are gluten-free certified before serving.