In a large mixing bowl, whisk together the all-purpose flour, whole wheat flour, baking powder, and salt.
Add the plain whole milk yogurt to the dry ingredients and gently mix until a dough begins to form.
Transfer the dough onto a lightly floured surface and knead it for about 2-3 minutes until smooth.
Cover the dough with a clean kitchen towel and let it rest for about 15-20 minutes.
Divide the dough into 6-8 pieces, roll each into a ball, and flatten into disks about 1/4 inch thick.
Heat a skillet over medium-high heat and cook each flatbread for 1-2 minutes on each side until golden brown.
Garnish with freshly chopped parsley if desired, and serve warm.