To make sure that our gluten-free friends can enjoy this adventure you may want to consider replacing the regular soy sauce, with tamari or a soy sauce that is certified gluten-free. Tamari, which is a gluten-free version of soy sauce is often naturally gluten-free. Adds a delightful umami flavor that perfectly complements the dish. Additionally it's always an idea to check the labels of store-bought chicken broth and ketchup for any hidden sources of gluten. By making these adjustments you can indulge in the tropical flavors of Grilled Huli Huli Chicken without any concerns, about gluten!