Mix the Dough – In a large bowl, combine flour and water. Mix until no dry flour remains. Cover and let rest for 30-45 minutes (autolyse).
Add Starter and Salt – Mix in the sourdough starter and salt. Fold the dough until well incorporated.
Bulk Fermentation – Cover and let the dough rise for 4-6 hours at room temperature. Every 30 minutes, stretch and fold the dough to build strength.
Shape the Dough – Lightly flour a surface, shape the dough into a round or oval, and place it into a floured banneton or bowl.
Final Proof – Cover and let it rise at room temperature for 1-2 hours or refrigerate overnight for deeper flavor.
Preheat and Bake – Preheat oven to 475°F (245°C) with a Dutch oven inside. Transfer the dough onto parchment paper, score the top, and place it in the Dutch oven. Cover and bake for 20 minutes.
Finish Baking – Remove the lid and bake for another 15-20 minutes until golden brown.
Cool and Enjoy – Let the bread cool completely before slicing.