Feed Your Starter: Ensure your sourdough starter is active and has doubled in size before using it.
Mix the Dough: In a large bowl, combine the starter, water, flour, and salt. Stir until all ingredients are fully incorporated into a shaggy dough.
Bulk Fermentation: Cover the bowl and let the dough rise at room temperature for 10-12 hours, or until it has doubled in size.
Shape the Dough: Lightly flour your hands and a work surface. Shape the dough into a round ball and place it in a proofing basket or lined bowl.
Final Proof: Cover and let it rise for another 1-2 hours, until slightly puffed up.
Preheat Oven: Heat oven to 450°F (230°C) and place a Dutch oven inside for at least 30 minutes.
Score & Bake: Transfer the dough to the preheated Dutch oven, score the top, and bake covered for 20 minutes. Remove the lid and bake another 20 minutes until golden.
Cool & Enjoy: Let the bread cool completely on a wire rack before slicing.