In a large bowl combine the flour, water, salt, yeast, and sourdough starter.

Gently mix until it just comes together and forms a shaggy dough.

Cover and let the dough rise for 2 hours.

Place a Dutch oven in your oven and preheat the oven to 425 degrees.

Meanwhile, dust a piece of parchment paper with flour and pour the dough onto the parchment. Gently shape into a round.

Sprinkle the top of the dough with fine coat of flour. Use a small, sharp knife or other tool to score the dough.

Remove Dutch Oven from oven and carefully lift the dough, using the parchment, into the Dutch oven. Cover and return to the oven. Bake for 30 minutes.

Remove the lid from the Dutch oven and bake for 15 more minutes.

Remove from oven and cool at least 1 hour before cutting.