To make this Easy Texas Sheet Cake Bundt gluten-free. Simply swap out the chocolate cake mix. For a gluten-free version. Most major brands offer a gluten-free chocolate cake mix. That works just as well in this recipe. Additionally, ensure that all other ingredients. Like the cocoa powder and powdered sugar. Are certified gluten-free. With these simple substitutions. You can enjoy all the rich, chocolatey goodness of this cake. Without any gluten. Making it a perfect dessert. For those with dietary restrictions. Just be sure to bake it in a clean, gluten-free environment. To avoid any cross-contamination.