Place the cleened and unpeeled potatoes in a large pot, add two teaspoons of salt and fill the pot with water, covering the potatoes by about an inch. Boil over medium-high heat, for 20-25 minutes until the potatoes are cooked through.
Peel and halve the onion, then slice it thinly. Finally, separate the onion slices into individual strands.
In a smaller bowl add the dry ingredients: sugar,sea salt, and freshly ground black pepper. Then Iadd the liquid ingredients: white wine vinegar and warm water. Mix everything well until the salt and sugar dissolve and set it aside.
Choose a large bowl and layer the potatoes and onions. Start with a layer of thinly sliced onions, followed by a layer of thinly sliced potatoes. Continue layering until all the potatoes and onions are used.
Pour the brine over the layered vegetables. Place the bowl in a cool place for at least an hour.
Garnish the salad with a sprinkle of freshly chopped parsley or chives, and it's ready to serve!
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Notes
Don't over-mix: Avoid excessive stirring or mixing, as this can cause the potatoes to break down and become mushy.For the best results in your Hungarian potato salad, start with whole, unpeeled potatoes.