Wash the potatoes and cook in boiling water for about 20 minutes. Drain the potatoes, quench, peel and leave to rest for at least 30 minutes. Boil eggs hard in boiling water for 10 minutes, quench and peel. Peel onion and chop finely. Cut bacon into small cubes. Wash the chives and, except for something for garnishing, cut into small rolls. Cut potatoes into slices.
Bring vinegar and stock to the boil briefly. Season with salt, pepper and sugar. Add oil and pour hot over the potatoes. Leave bacon in a pan without fat until crispy. Cut eggs into slices, chop walnuts roughly. Add bacon, nuts and slices of egg, except for 2 for garnishing, to the potatoes. Arrange potato salad in a bowl, garnish with slices of egg and chives
Waiting time approx. 20 minutes