Prep Time 25 minutes mins
Cook Time 20 minutes mins
Resting Time 8 hours hrs
Total Time 8 hours hrs 45 minutes mins
For best results, use a mature, bubbly starter that has recently peaked, as a weak starter will give you dense rolls; adjust the bulk fermentation based on your kitchen temperature, aiming for dough that looks airy rather than strictly watching the clock. If the dough feels very sticky, lightly oil your hands instead of adding extra flour, which can toughen the crumb. For softer dinner rolls, lightly brush the tops with melted butter as soon as they come out of the oven, and for stronger sour flavor, extend the cold proof up to 18 hours. These rolls also freeze well: let them cool completely, freeze in an airtight bag, and rewarm in a low oven before serving.