Wash the potatoes and cook in water for about 20 minutes
Leave the ham in a pan until crispy. Drain and let cool off
Peel onion and cut into fine rings. Cut cucumbers into thin slices. Stir sour cream, yoghurt and cucumber water until smooth. Season with a little salt, pepper and 1 pinch of sugar
Add ham, onion and gherkins to the sauce. Dab the maties and cut into pieces. Mix loosely with the sauce. Wash the chives, chop finely and sprinkle over them. Serve with potatoes