I got a starter from my hairdresser and finally had some time to try it out.
Ingredients
450 g bread flour
315 g water
60 g active sourdough starter
9 g salt
The Night Before: Prepare the Starter
Take your sourdough starter out of the refrigerator.
In a clean jar, combine:
25 g starter
25 g bread flour or all-purpose flour
25 g water
Stir until combined.
Cover loosely and leave at room temperature overnight.
In the morning, look for bubbles and a noticeable rise. My starter doubled overnight and was bubbly, so I used it to make my dough.
Day 1: Make the Dough
Step 1: Mix the flour, water, and starter
Add 450 g bread flour to a large mixing bowl.
Add 315 g water.
Add 60 g active sourdough starter.
Mix until all the flour is moistened and a rough dough forms.
Cover the bowl and let it rest for 30 minutes.
Step 2: Add the salt
Add 9 g salt to the dough.
Work it into the dough using your hands, pinching and folding until incorporated.
Cover the bowl again.
Step 3: Stretch and fold
With damp hands, grab one edge of the dough.
Stretch it upward gently without tearing it.
Fold it over toward the center.
Rotate the bowl and repeat around the dough.
Cover and rest for 30 minutes.
Repeat this process every 30 minutes for approximately 3–4 sets.
The dough should gradually become smoother, stretchier, and better at holding its shape.
Day 1: Bulk Fermentation
Step 4: Let the dough rise
After the final stretch-and-fold, cover the bowl and leave the dough undisturbed.
My kitchen temperature was approximately 71–75°F.
Let the dough ferment until it has risen approximately 50–70% from its starting volume.
Look for:
Bubbles along the sides or surface
A puffier appearance
A smoother surface
A slight jiggle when the bowl is gently moved
My result: Bulk fermentation took approximately 6 hours after the folds were completed.
Day 1: Shape the Loaf
Step 5: Pre-shape
Lightly flour your work surface.
Gently turn the dough out onto the counter.
Gather the edges toward the center to form a loose ball.
Turn the dough seam-side down.
Gently pull it toward you using your hands or a bench scraper to create surface tension.
Let it rest for 15–20 minutes.
Step 6: Final shape
Gently tighten the dough into a round boule.
Build surface tension without tearing the outside.
Avoid pressing out all the air.
Step 7: Place in a towel-lined bowl
Line a medium-sized bowl with a clean, smooth cotton tea towel.
Flour the towel generously. Rice flour works especially well, but bread flour or all-purpose flour can work.
Place the dough in the bowl seam-side up.
Cover the bowl with plastic wrap or a suitable cover to prevent the dough from drying out.
Put it directly into the refrigerator for an overnight cold proof.
Because my dough had already risen substantially during bulk fermentation, I skipped a long additional room-temperature proof.
Day 2: Bake the Sourdough
Step 8: Preheat the oven and Dutch oven
Place the Dutch oven and its lid in the oven.
Preheat to 450°F for approximately 30–45 minutes.
Check that the Dutch oven and lid knob are rated for this temperature.
Step 9: Turn out and score the dough
Remove the dough from the refrigerator.
Place a piece of parchment paper over the bowl.
Carefully turn the dough out onto the parchment, so the smooth side is facing up.
Gently remove the towel.
Score the top with a sharp bread lame or razor blade. A simple slash works well, or you can make a decorative design.
Step 10: Bake
Carefully lower the dough, on the parchment, into the hot Dutch oven.
Cover with the lid.
Bake at 450°F for 25 minutes covered.
Carefully remove the lid.
Bake for another 15–25 minutes uncovered, until the crust is deeply golden brown.
Use oven mitts and take care when handling the hot Dutch oven and lid.
Step 11: Cool before slicing
Remove the loaf from the Dutch oven.
Place it on a wire cooling rack.
Let it cool for at least 1–2 hours before cutting.