Prep Time 25 minutes mins
Cook Time 40 minutes mins
Resting Time 12 hours hrs
Total Time 13 hours hrs 5 minutes mins
For best results, ensure your sourdough starter is very active before mixing the dough, as the enrichment from butter, sugar, and egg can slow fermentation; adjust proofing times based on your kitchen temperature and use the dough’s appearance—puffy, airy, and about 50–75% risen—rather than the clock alone. If the add-ins feel like they are tearing the dough, chill them first and incorporate gently after some gluten has developed. You can customize flavors by swapping cranberries for other dried fruits, altering spices, or adding citrus zest; just keep total mix-ins similar to avoid weighing the dough down. Leftover bread stays soft if wrapped tightly once fully cool and can be revived by toasting or briefly warming in the oven, and slightly stale slices make excellent French toast or bread pudding.