This is a stovetop and sourdough-leavened variation on Indian naan flatbread. This dough is easy to mix up, has a non-traditional cooking strategy of using a hot cast-iron pan. The flatbread is delicious when served with traditional Indian lentils (e.g. masoor dal) or used to dip in hummus or even make personal toaster-oven pizzas. They freeze well and you may find yourself doubling the batch to have more in stock.