To make this recipe gluten-free. Simply replace the sourdough or rye bread. With your favorite gluten-free bread. Ensure the mayonnaise, ketchup, and mustard. And any other condiments you use. Are also gluten-free. As some brands may contain hidden gluten. Additionally, double-check that the burger patties. And any pre-made ingredients are gluten-free. With these substitutions. You can enjoy the same delicious flavors. And textures. Without any gluten-related concerns.