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 is fully cohesive and ingredients are evenly distributed.
03 - Perform 4 sets of stretch and folds every 30 minutes over 2 hours, keeping the dough covered between sets to develop strength and elasticity.
04 - Cover the bowl and let the dough rise at room temperature for 4-6 hours, or until approximately doubled in size with visible bubbles.
05 - Turn the dough out onto a lightly floured surface. Shape into a tight round or oval loaf, creating surface tension.
06 - Transfer the shaped dough to a floured proofing basket with seam side up. Cover and refrigerate for 8-12 hours for 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 in desired pattern. Transfer loaf with parchment into the hot Dutch oven.
09 - Cover Dutch oven and bake for 20 minutes to create initial oven spring and steam for crust development.
10 - Remove the lid and bake for another 20 minutes until crust is deep golden brown and internal temperature reaches 200-210°F.
11 - Cool on a wire rack for at least 1 hour before slicing to allow crumb structure to set and prevent gummy texture.