Classic Artisan White Sourdough
The rise comes entirely from a sourdough starter with no packaged yeast, and 12 to 15 hours of cold fermentation in the refrigerator give the crumb a gentle sourness. The starter should have roughly doubled and be full of bubbles when it is used; having fed it the night before is not proof that it is ready. A preheated Dutch oven with the lid on traps the dough's own steam so the interior stays moist, and once the lid comes off the crust dries to a thick, crackling brown.