Prep Time 30 minutes mins
Cook Time 25 minutes mins
Resting Time 14 hours hrs
Total Time 14 hours hrs 55 minutes mins
For best flavor and texture, use an active, recently fed starter and adjust proofing times to your kitchen temperature—longer in cool rooms and shorter in warm ones. If the dough feels too sticky, add only a tablespoon of flour at a time to avoid making the rolls dense, and similarly, if too stiff, add a teaspoon of milk at a time. For cleaner cuts, chill the filled log for 10–15 minutes before slicing and use unflavored dental floss to prevent squashing the spirals. You can prepare the frosting ahead and keep it chilled, then let it soften while the rolls bake so it spreads easily over the warm buns.