====== Austrian Potato Salad ======

  * 1 kg type B or C potatoes, quartered, cut into 1/4-inch-thick slices
  * 2 tbsp white wine vinegar
  * 1/4 cup olive oil
  * 2 tbsp Dijon mustard
  * 1 small red onion, minced
  * 1 bunch minced chives
  * 1/2 cup stock
  * freshly ground black pepper

Bring potatoes to boil in salted water, then simmer until cooked but still firm, about 6 minutes. Strain and immediately sprinkle with vinegar, stir. Let cool for a bit. Add remaining ingredients and stir well until the salad thickens. Cool down completely and let rest in a fridge overnight.