We stumbled across Cafe am Petriplatz on our way back from the DDR museum. Once inside, we were amazed by the extensive menu, and loved the (we presume) mother and daughter who ran the place - friendly, warm and very concerned that our every need was met. I tried the Currywurst, which I thoroughly enjoyed, and my wife had pork with "sour cabbage" (sauerkraut), which we both thought was exceptional. We succumbed to Apple Strudel with both whipped cream and ice cream for dessert, which was delicious and decadent. While the environs are not exceptional (my wife loved the dolls decorating the walls), this is a great example of a little spot that deserves patronage.