To make this Pita Bread gluten free, replace the all-purpose flour with a gluten-free bread flour blend or a certified gluten-free 1:1 flour blend designed for yeast baking. Also confirm that the active dry yeast is certified gluten free if needed for strict dietary requirements. Because gluten-free dough behaves differently, you may need to add xanthan gum if your blend does not already include it, and the finished texture may be slightly less chewy and less likely to form a full pocket than traditional pita bread.