Preheat oven to 375°F
In a small bowl, combine flour, baking powder, and salt. Mix well. Add the sourdough starter and the Greek yogurt, and combine. The dough should form a sticky ball. If the dough is still dry, add a tbsp of milk at a time until it's no longer dry.
If adding flavoring to your dough, add it now and incorporate.
Sprinkle flour on your hands, take the dough out of the bowl, and place it on parchment paper or a silicone mat.
Divide the dough into even sections. I usually use a scale for this part.
Once divided, take one section and roll it into a long rope. Wrap the rope into a circle and attach the ends. Stretch out the circle slightly so that the inside of the circle is wider. Repeat with the remaining sections of dough.