01 - In a large mixing bowl, whisk together the sourdough discard, yogurt, sugar, melted butter (or oil), salt, baking powder, and baking soda until smooth and well incorporated.
02 - Gradually add the all-purpose flour to the wet mixture, stirring with a wooden spoon or your hands until a shaggy, rough dough comes together.
03 - Add warm water one tablespoon at a time, kneading gently, until the dough is soft and slightly tacky but holds together in a cohesive ball.
04 - Transfer the dough to a lightly floured work surface and knead gently for 2–3 minutes until the surface is smooth and elastic.
05 - Place the dough in a lightly greased bowl, cover with a damp kitchen towel, and let it rest in a warm spot for 1–2 hours. The dough will puff up noticeably, though it may not fully double in size.
06 - Divide the risen dough into 8 equal pieces and roll each into a smooth round ball. Keep the portions covered so they don't dry out.
07 - On a lightly floured surface, roll each dough ball into an oval or classic teardrop shape, approximately ¼ inch thick.
08 - Heat a cast iron skillet or heavy nonstick pan over medium-high heat until the surface is very hot and lightly smoking.
09 - Place one rolled naan onto the hot skillet. Cook until large bubbles puff up across the surface and the underside turns golden brown, about 1–2 minutes. Flip and cook the other side for another 30–60 seconds until charred in spots.
10 - Remove the cooked naan from the pan and immediately brush with melted butter. Sprinkle with minced garlic, fresh cilantro, or nigella seeds if desired. Repeat with the remaining dough portions and serve warm.