"This is a fail-safe method for making good tasting sourdough bread. Baking good sourdough bread from your own starter is immensly rewarding. In the old days, people mixed up their water based dough and let nature's wild yeast do it's thing. Romantic maybe, but the results were spotty.
This is a milk based recipe with the addition of cultivated bread yeast. The sour taste comes from the fermented milk and wid yeast strains. The guaranteed success comes from the cultivated yeast."