Mix the ingredients of the base sauce well. Season to taste with salt and pepper. You can also vary it with yoghurt and curd cheese.
Garlic sauce: Press the desired number of garlic cloves into the base sauce. Mix in finely chopped chives if necessary. Sprinkle the finished sauce with chives.
Egg sauce: put 2 slices of the egg aside. Finely chop or chop the hard-boiled eggs and pickles and carefully stir into the base sauce with the mustard. Place the egg slices on the finished sauce. Garnish with parsley if necessary.
Horseradish sauce: Slice some fine slices from the horseradish root and put aside. Finely grate the horseradish and stir into the base sauce. Decorate the finished sauce with the slices. (In Austria they say horseradish horseradish)