Brush the potatoes vigorously under water. Heat the oil in a large pan. Fry the potatoes for about 30 minutes at medium heat, turning them frequently. Season with sea salt. Stir cream cheese, quark and mineral water until smooth.
Season to taste with salt and pepper. Divide cheese cream into 3 portions. Wash dill and chives, dab dry and chop finely. Clean and wash the radishes and cut them into thin sticks. Cut salmon into fine strips.
Fry the diced ham crisply without additional fat, let it cool down. Mix one portion of cheese cream with salmon and dill, the 2nd portion with radishes and chives. Mix the 3rd portion of cheese cream with horseradish and ham.
Arrange potatoes and dips. Garnish with parsley if desired.