Wash potatoes thoroughly and cook in boiling water for about 20 minutes. Boil eggs in boiling water for about 10 minutes until hard.
For the sauce, whisk vinegar, mustard and honey. Add oil drop by drop. Season to taste with salt and pepper.
Finely dice the cucumbers. Wash herbs, shake dry, cut leaves from the stems and chop finely. Cut chives into fine rolls.
Drain the potatoes, let them cool down briefly and cut in half. Rinse eggs cold, peel and cut into thirds. Mix potatoes, cucumber, sauce and herbs. Fold in eggs and arrange salad.