Combine yeast and water in a small bowl. Let it rest for a few minutes to activate.
In a large bowl, stir the flour, garlic, thyme, sugar, and salt.
Make a well in the flour mixture, then add the ghee or melted butter, yogurt, and activated yeast. Knead to form a soft dough.
Place dough on a heavily floured board and knead for 3-4 minutes—until the dough is soft, elastic, and smooth.
Place kneaded dough in a lightly oiled bowl and let it rise until doubled. Punch it down.
Divide it into 6-8 pieces according to preference and let it rest for about 10 minutes so the gluten relaxes.
Using a rolling pin, roll out the dough balls into circles. Begin rolling out the dough from the center, working outwards. They don't have to be perfect.
Rotate the dough ball each time you roll it to make a nice circle.
Preheat a skillet, fry pan, or stovetop grill pan over medium-high—lightly oil the pan. Place a flatbread in the skillet and cook without touching it until you see bubbles on the surface, 1-2 minutes. Flip and cook for another 1-2 minutes until it puffs up. (If it browns without puffing, that's fine as long as it's cooked through.)
Serve immediately.