• 1 kg potatoes
  • 1 onion
  • 500 ml vegetable stock
  • 10 tbsp vinegar
  • 10 tbsp oil
  • 1 tsp mustard
  • 1 pinch sugar
  • salt, pepper
  • 1 kg potatoes
  • 1 onion
  • 500 ml vegetable stock
  • 10 tbsp vinegar
  • 10 tbsp oil
  • 1 tsp mustard
  • 1 pinch sugar
  • salt, pepper