Wash the potatoes thoroughly and cook in boiling water for about 20 minutes. Drain, rinse with cold water and peel, leave to cool. Peel and finely chop the onion. Cut potatoes into slices. Heat a pan and spread with a bacon rind. Fry the potatoes in the bacon fat for approx. 10 minutes, turning several times until crispy brown. Add the onion 2-3 minutes before the end of the cooking time and fry with it
Wash the herbs, dab dry. Cut the chives into small rolls, chop the parsley finely and put some aside for garnishing. Mix quark with mustard and remaining herbs. Beat the egg whites until stiff and fold into the quark. Season to taste with salt and pepper. Season potatoes with salt and pepper. Serve with tartar sauce and sprinkle with the herbs set aside. Serve with roast beef
Waiting time 15 minutes