in their skins - 1 half of an onion finely diced - 0,1 l beef bouillon or vegetable stock - 2 tbsp. apple vinegar - 2 tbsp. cold-pressed sunflower oil - 150 g mixed herbs - (e.g. flat parsley, chervil, rocket, dandelion etc.) - 100 g black forest ham preparation: coarsely grate the potatoes into a bowl...