In a large bowl, combine 1 cup water with 1/2 cup of starter. Mix well.
Add flour and salt to the bowl and mix until incorporated. The dough will start to clear the sides of the bowl as you finish mixing.
Once the dough is thoroughly mixed, use your hands to form a ball of dough.
Wipe the bowl with oil and return the dough ball.* Cover the bowl to keep the fermenting dough warm and damp. Allow to ferment six hours or until doubled in size. The dough will slowly return a gentle fingerprint, though not completely, when ready to form into a loaf.
Remove the dough from the bowl and place it on a clean, lightly floured** surface. Start tucking the edges underneath to the bottom of the dough while slowly rotating it. This should take no more than four or five tucks to form a log of dough. Don't overwork the dough.
Place the log into an seasoned/oiled or parchment paper-lined bread pan and cover with an inverted oiled bread pan. This will keep the dough moist while it rises. Allow the dough to rise until doubled in size, usually 1-2 hours.
Remove the inverted pan and use scissors to cut 3-6 slashes on the top of dough. Return the inverted pan and place in the oven. Place the pan inside a cold oven and set to 450°F/232°C for 35 minutes. Then reduce the oven temperature to 400°F/2041°C and bake for another 25-30 minutes. Sourdough bread is done when an internal thermometer reads around 205°F/96°C.
Gently remove from the pan to a cooling rack and allow to cool completely ( up to 12 hours) before cutting.
Store in an airtight bag or container for up to a week in a cool place.