1. After at lest 4 and up to 8 hours before you plan to put this bread into the bread machine, mix together the ingredients for the sponge. Cover and let stand at room temperature.
2. After at least 4 hours, when the sponge has developed air bubbles, add all of the bread ingredients and the sponge in the order suggested by your bread machine manual. Process on the bread cycle according to the manufacturer's directions.
*-After measuring out what is needed for this recipe, be sure to replenish your sourdough starter with equal amounts of flour and water.