Drain the dried tomatoes. Clean, wash and quarter the cabbage, remove the stalk. Cut cabbage into small pieces. Cut tomatoes into strips.
Heat the fat in a frying pan. Fry the potato noodles over medium heat while turning for about 15 minutes. Press the onion mixture directly from the skin into pieces and add to the potato noodles. After another 5 minutes add cabbage and dried tomatoes and continue frying at low heat.
Stir the sour cream and 5 tablespoons of water until smooth. Stir in briefly. Season to taste with salt, pepper and nutmeg.