Feed starter eight hours before beginning the bread, allowing for a thick and healthy starter.
Using a kitchen scale, add starter and flour to bowl.
Add water less 50g (1/4 cup) to starter flour mix, and combine. Rest 10 minutes.
Sprinkle with salt and pour in remaining 50g water.
Punch down dough into water allowing absorption and rest 10 minutes.
Begin a series of stretch and folds every 10 minutes until dough is soft, silky and holds a general shape. Approximately 3 times.
Drizzle loaf with oil and cover with a tea towel. Bulk Ferment 12 hours or until doubled.
Remove dough from bowl and place on a well floured surface. Begin shaping.
Shape into a ball until a smooth tight surface forms and dough retains shape.
Preheat oven to 450ºF and place dutch oven inside to pre-heat.
Place in floured banneton basket smooth side down and cover with towel. Proof 45 minutes to an hour.
Transfer dough onto parchment paper and score. Place in preheated dutch oven, cover with lid and bake 20 minutes.
Uncover and bake an additional 20 minutes or until browned.