When staying with my brother and his lovely wife from Germany she made me this dish served with cooked red cabbage. It was so delectable I asked for the recipe and she also made it again on my last night with them. I hope you enjoy it as much as I did. I believe it is a genuine German recipe as she had to translate it from a German cookbook. She didn't give me amounts for some ingredients, so I have estimated the amount of flour, water and wine that is used.