In a large mixing bowl, combine the bread flour, water, and sourdough starter.

Let the mixture rest for about 30 minutes.

Sprinkle the salt over the dough and mix it in thoroughly.

Knead the dough on a floured surface for about 10 minutes until smooth and elastic.

Place the dough in a greased bowl, cover it, and let it rise at room temperature for 4 to 6 hours, or until doubled in size.

Gently turn the dough out onto a floured surface and shape it into a round loaf.

Place the shaped dough in a proofing basket, cover it again, and let it rise for 1 to 2 hours.

About 30 minutes before baking, preheat your oven to 450°F (232°C) with a Dutch oven inside.

Carefully remove the hot Dutch oven, place the dough inside, and cover.

Bake for 30 minutes covered, then 15 minutes uncovered.