Activate the Yeast: Mix the warm water and maple syrup in a small bowl. Sprinkle the yeast on top, stir gently, and let it sit for 5-10 minutes until it becomes frothy.
Mix the Dough: In a large mixing bowl, combine the whole wheat pastry flour and salt. If using, add the orange juice to the yeast mixture, and then pour the yeast mixture into the flour. Mix until a dough forms.
Knead the Dough: Transfer the dough to a lightly floured surface and knead for 5-7 minutes, or until smooth and elastic. Add a little more flour if needed to prevent sticking.
Let the Dough Rise: Place the dough in a clean bowl, cover it with a damp cloth, and let it rise in a warm place for about 1 hour or until it doubles.
Shape the Pitas: Once the dough has risen, punch it down and divide it into 6-8 equal pieces. Roll each piece into a ball and then flatten it into a circle about 1/4 inch thick. Use some flour to prevent sticking*.
Cook the Pitas in the Oven: Preheat your oven to 475°F and place a baking stone or inverted baking sheet on the lower rack to heat up. Once hot, place the pitas directly on the preheated surface and bake for 3-5 minutes () until they puff up and turn lightly browned on top (baking time will vary from oven to oven). See how to cook on the stovetop in notes**.
Cool and Serve: Once cooked, wrap the pitas in a clean kitchen towel to keep them soft. Serve warm or let them cool completely before storing them in an airtight container.