Wash the potatoes and cook for about 20 minutes. Then rinse with cold water, peel and let cool. In the meantime clean and wash the cucumber and radishes. Cut the radishes into slices. Halve the cucumber lengthwise and cut into slices.
For the marinade, peel and finely dice the onion. Wash the chives and cut into rings. Whip vinegar and oil. Stir in onion and chives. Season with salt, pepper and sugar. Cut potatoes into slices and mix with the marinade. Cover and let stand for about 30 minutes. Season to taste again. Wash the salad leaves.
Season with salt, pepper and sugar. Cut potatoes into slices and mix with the marinade. Cover and let stand for about 30 minutes. Season to taste again. Wash the salad leaves. Arrange the lettuce leaves with the potato salad on a plate and serve
Waiting time approx. 30 minutes