Here is a great recipe for authentic German Sourdough Bread. This bread tastes almost exactly like the bread we buy back home in Bavaria, Germany. There, to this day, they bake their bread in a very old stone oven in the middle of a small village, once every 2 weeks. They bake a whole bunch at once, and then you can buy it and freeze extras until the next baking day. It's the best German bread I know!