Make mayonnaise from the egg yolk, 2 teaspoons of mustard, sugar, vinegar and oil. Apart from the oil, first whip the other ingredients into a creamy mass. Then slowly pour in the oil, stirring constantly, until the desired consistency is reached.
Peel the hard-boiled eggs and cut them into small cubes together with the pickled gherkins. Cut the chives into small rolls. Mix the three ingredients together. Mix the mixture with 2 teaspoons of mustard and some of the mayonnaise (dose the mayonnaise according to the desired amount). Now season with salt, pepper, curry powder and a dash of apple cider vinegar.
Leave to stand in the refrigerator for 2 hours before consumption.