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 its shape without sticking excessively to your hands.
04 - Transfer the dough to a lightly floured work surface and knead gently for 2 to 3 minutes until the dough is smooth, elastic, and no longer ragged.
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 to 2 hours. The dough will puff up noticeably but may not fully double in size.
06 - Punch down the dough gently and divide it into 8 equal portions. Roll each portion into a smooth ball and cover loosely to prevent drying.
07 - On a lightly floured surface, roll each dough ball into an oval or teardrop shape approximately 1/4 inch thick, dusting with flour as needed to prevent sticking.
08 - Heat a cast iron skillet or nonstick pan over medium-high heat until it is ripping hot and lightly smoking. A hot surface is essential for achieving the characteristic charred bubbles.
09 - Place one rolled naan onto the hot skillet. Cook until large bubbles form across the surface and the underside is golden brown with dark spots, about 1 to 2 minutes. Flip and cook the other side for another 30 to 60 seconds until puffed and cooked through.
10 - Immediately upon removing from the pan, brush the hot naan generously with melted butter. Sprinkle with minced garlic, fresh cilantro, or nigella seeds if desired.
11 - Repeat the cooking process with the remaining dough balls, keeping finished naan wrapped in a clean towel to stay warm. Serve immediately while soft and pillowy.