01 - In a large bowl, mix the flour and water until just combined. Cover and let rest for 1 hour to develop gluten structure.
02 - Add the sourdough starter and salt to the autolyse mixture. Mix thoroughly until the dough becomes cohesive and fully integrated.
03 - Complete 4 sets of stretch and fold technique every 30 minutes over a 2-hour period, keeping the dough covered between each set to build strength.
04 - Cover the bowl and let the dough rise at room temperature for 4-6 hours, or until approximately doubled in volume with visible bubble formation.
05 - Turn the dough onto a lightly floured surface and shape into a tight round or oval loaf, creating surface tension.
06 - Transfer the shaped dough to a floured proofing basket with the seam side up. Cover and refrigerate for 8-12 hours for slow cold fermentation.
07 - Preheat oven to 450°F with a Dutch oven inside for at least 30 minutes to ensure proper heat retention.
08 - Gently invert the dough onto parchment paper. Score the top with a sharp blade or knife in your desired pattern.
09 - Transfer the loaf with parchment into the preheated Dutch oven. Cover with the lid and bake for 20 minutes to create oven spring.
10 - Remove the lid and continue baking for 20 minutes until the crust achieves a deep golden brown color and sounds hollow when tapped.
11 - Transfer the bread to a wire rack and let cool for at least 1 hour before slicing to allow the crumb to set properly.