Classic Sourdough Boule
A round, crusty loaf with an open crumb and tangy flavor. The community workhorse — start here if you've never baked sourdough.

Recipe Details
Ingredients
- Bread flour500 g
- Water (room temp)375 g
- Active sourdough starter100 g
- Salt10 g
Instructions
- 1
Mix flour and water until no dry flour remains. Cover and rest 1 hour (autolyse).
- 2
Add starter and salt. Mix and squeeze through the dough until incorporated.
- 3
Bulk ferment 4–6 hours at room temperature with 4 sets of stretch-and-folds in the first 2 hours.
- 4
Pre-shape into a round, rest 20 minutes, then final shape and place seam-up in a floured banneton.
- 5
Cold proof in fridge 8–24 hours.
- 6
Preheat Dutch oven to 500°F. Score the loaf, bake covered 20 min, uncover and bake 20 more at 450°F.
Equipment
- Dutch oven
- Banneton basket
- Kitchen scale
- Bench scraper
- Lame
Ideal Outcome

A round, crusty loaf with an open crumb and tangy flavor. The community workhorse — start here if you've never baked sourdough.
Real User Outcomes
- Partial SuccessMV
@marta-villalobos
Classic Sourdough — first attempt

My first attempt at sourdough! The crust came out better than expected but I'm still working on the oven spring. Any tips appreciated!
SourdoughIntermediateOven Spring♡ 42◌ 12↗ Share - Learning ExperienceTO
@tomas-okonkwo
Trying my first boule — flat

The shape totally lost it during proof. I think I overshot the bulk fermentation. Crust is delicious though, will keep trying.
SourdoughOverproofed♡ 12◌ 9↗ Share - SuccessTO
@tomas-okonkwo
Dialed it in!

Second attempt: much shorter bulk, finished in the fridge overnight. Beautiful ear and an open crumb. Thanks Marta and Melissa for the tips!
SourdoughOpen CrumbEar♡ 56◌ 11↗ Share - Partial SuccessJK
@jamie-kim
Rustic boule, partially open crumb

Got better oven spring this time but the crumb is still tighter than I want. I'm going to try a higher hydration next.
SourdoughHydration♡ 19◌ 5↗ Share
Troubleshooting Links
Starter Notes
Use a mature starter that doubles within 4–6 hours of feeding. If yours is sluggish, expect a denser crumb.