To your 1 cup of starter, add 3 cups flour, 1 cup water, and 1 teaspoon salt. Mix well to combine.
On a floured cutting board, knead the sourdough for 10-15 minutes until the gluten begins to develop in the dough.
Cover the bowl with a tea towel, and allow dough to rise for about 12 hours.
Once the dough has risen, knead the dough again and set in a floured bowl (or proofing bowl) for the second rise. Allow dough to rise again for another 2 hours.
TIME TO BAKE! Preheat the oven to 450 degrees Fahrenheit. Place the dutch oven in the oven while its heating up, so it is nice and hot when you are ready to add the dough.
Once oven reaches 450, carefully remove the dutch oven, and place loaf of bread in the dutch oven. Bake with thte dutch oven lid ON for 30 minutes.
After 30 minutes, remove the dutch oven lid and cook uncovered for 10-15 minutes until the top becomes nice and brown.
Carefully remove the pot from the oven, place bread on a cooling rack, and allow to cool for 20 minutes.