Peel, wash and dice the potatoes. Clean, wash and cut cabbage into slices. Lentils wash and drain. Add potatoes and lentils to the boiling broth and cook for 15 minutes. Cook cabbage in little boiling salted water for 15 minutes.
Wash parsley and chop finely. Stir the crème fraîche into the stock. Fold in the parsley. Serve the cabbage slices together with the potato and lentil sauce