If you want to make our Caramel Apple Cheesecake Bars suitable, for a gluten-free diet just replace the regular all-purpose flour with your preferred gluten-free 1 to 1 baking flour in both the crust and the streusel topping. Make sure to use gluten-free quick-cooking oats as well. Before you begin double-check the ingredients, in your caramel topping to make sure it's also gluten-free. With these substitutions you can create a dessert that everyone can enjoy even those following a gluten-free lifestyle!