Combine the Ingredients: In a large mixing bowl, mix the active sourdough starter (or discard), flour, milk, and salt. Stir until a dough ball forms. If the dough is too sticky, you can add a little bit of flour.
Knead the Dough: Knead the dough on a floured work surface for a couple of minutes until it becomes smooth and elastic. Shape it into a ball.
Let the Dough Rest: Place the dough ball in a greased bowl, cover it with a tea towel or plastic wrap, and let it rest in a warm place for at least 4 hours or overnight. This allows the dough to ferment and develop flavor.
Divide the Dough: After the dough has rested and doubled in size, divide it into equal pieces. This recipe typically makes 4-6 flatbreads.
Rolling Out the Flatbreads: On a floured work surface, use a rolling pin to roll each dough ball into a perfect circle or oval, about 1/4 to 1/8-inch thick.
Cooking on the Stove Top: Add a small amount of oil and preheat a cast iron pan or non-stick pan over medium-high heat. Once hot, cook each flatbread for about a minute on the first side, then flip it and cook for an additional minute on the second side. You'll notice the flatbread puffing up – that's the magic of the sourdough at work!
Finishing Touches: Brush the cooked flatbreads with melted butter (we love garlic butter) or a little olive oil for that extra golden brown finish. Garnish with fresh parsley and some flaky sea salt.