Peel potatoes, wash them and chop finely. Dice ham too. Boil potatoes in salted water one minute, drain and pour off.
Fry potato cubes about 5 minutes until golden brown and season with salt and pepper. Stir in ham and heat briefly. Mix with vinegar and chives and season to taste.
Fill into rings of metal, pressing lightly and remove the rings before serving.
Marinade washed lamb´s lettuce with olive oil and vinegar and use them to garnish.