To make this Braised Chicken Heart And Gizzard Recipe gluten free, verify that the chicken hearts and gizzards, oil, garlic powder, salt, black pepper, and any packaged ingredients are labeled gluten free. Use plain water or certified gluten-free chicken broth if substituting the liquid. Serve with gluten-free sides such as rice, mashed potatoes, or gluten-free noodles. Use clean cookware, utensils, and cutting boards to prevent cross-contact with gluten-containing ingredients.