In a large bowl, whisk together flour, salt, cinnamon, nutmeg, and orange zest.
Stir in active sourdough starter, water, and maple syrup until a shaggy dough forms.
Cover and rest 30 minutes
Perform your first stretch and fold.
Add chopped fresh cranberries during this fold, gently pressing them into the dough.
Complete 3 additional stretch-and-fold rounds every 30 minutes until dough becomes smoother and more elastic.
Cover the bowl and let the dough bulk ferment at room temperature for 10–12 hours, or until doubled, airy, and jiggly.
Turn the dough onto a lightly floured surface, shape into a tight round, and rest 10–15 minutes.
Final shape into a smooth boule and place seam-side up in a floured banneton.
Final Rise Options
Room temperature: Rise 1–2 hours until puffy.
Cold retard: Cover and refrigerate 8–12 hours for enhanced flavor and easier scoring.