Prep Time 20 minutes mins
Cook Time 35 minutes mins
Resting Time 12 hours hrs
Total Time 12 hours hrs 55 minutes mins
For best results, ensure your sourdough starter is very active before mixing the dough, as this will help the sweet, enriched loaf rise properly; keep the milk only slightly warm so it does not weaken the starter, and be patient with fermentation since sugar and butter slow rising compared to regular sourdough. A long, cool proof in the refrigerator develops deeper flavor and a softer crumb, while gentle handling during shaping preserves airiness. Adjust proof times based on your kitchen temperature, and remember that a fully baked loaf will feel light for its size and sound hollow when tapped on the bottom.