1 kg potatoes (2 lb), of a firm-cooking variety
30 g butter (1 oz)
125 g onions (1/2 lb)
1/8 l strong broth (1/2 cup)
5 tablespoon white wine vinegar
salt
pepper
garlic powder
1 cucumber (375 g = 3/4 lb)
chives
Cook and then peel the potatoes while still hot. Heat butter in pan and saute the chopped onions, add broth and vinegar; when boiling, season with salt, pepper and garlic powder. Pour the contents of the pan into a bowl, slice the still warm potatoes directly into the broth. Cover and put in refrigerator to cool. Just before serving peel and thinly slice the cucumber and mix with the potatoes. Taste and adjust seasoning. Sprinkle with chopped chives.