Mix flour, water, and starter. Autolyse 30 mins.n2. Add salt, knead 10-15 mins.n3. Bulk ferment 8-12 hrs (overnight).n4. Mix sugar and cinnamon for filling.n5. Roll dough, spread filling, shape loaf.n6. Proof in banneton 1-2 hrs.n7. Preheat Dutch oven at 230°C (450°F).n8. Bake covered 30 mins, uncovered 15 mins.n9. Cool completely before slicing.
Notes
1. Adjust cinnamon/sugar ratio to tasten2. Best consumed within 3 daysn3. Freezes well - slice before freezingn4. Starter should be at peak activityn5. Maintain dough temperature at 24-26°C (75-78°F) during bulk fermentation