BEFORE YOU GET STARTED: Feed your starter 4-12 hours before starting this recipe. I recommend feeding it a 2:1 ratio of unbleached flour to filtered water to get the same results as I do when you make this recipe. Example: Feed 1 cup flour + 1/2 cup water and let the starter sit on the counter at room temperature until it's bubbly and has grow in the jar. Your starter needs to be active, bubbly, and a thicker consistency to begin this recipe.
In a large mixing bowl, add in sourdough starter, water, and salt, then stir until combined.
Add flour and stir until a shaggy dough forms. Use your hands to bring the dough into a ball. If this isn’t working add 1-2 Tablespoons of extra water to help but don’t do this if not necessary.
Cover dough with a lid loosely, a damp kitchen towel (that’s been wet then rung out), or plastic wrap. Let dough sit for 30 minutes on the counter at room temperature.
After 30 minutes, begin the first round of stretch and folds. To do this pull a section of the dough upward, folding it into the center, and pressing it down. Repeat this around the dough for 1-2 complete circles.
Cover the dough again and let it sit at room temperature for another 30 minutes. Then, repeat a second round of stretch and folds.
Bulk ferment dough on the counter top at room temperature for 12 hours (helpful information in notes below)
When the 12 hour bulk fermentation is complete place the dough on the counter (no flour needed) and pull it into a rectangle then roll it into a log
Place in a loaf pan and cover with a towel. Let rise on the counter at room temperature for 3-4 hours. It needs to double in size (see notes below for helpful information).
Bake at 375 degrees for 45-50 minutes.
Let cool on a cooling rack for 5 minutes in the pan then take out of pan to cool rest of way.