Wash potatoes thoroughly and cook in boiling water for about 20 minutes. In the meantime clean, wash and coarsely grate the carrots. Clean, wash and quarter radishes. Clean, wash and cut the cucumber into small pieces. Drain the potatoes, rinse and peel.
Cut potatoes into slices and let them cool down. Meanwhile peel and finely dice shallots for the vinaigrette. Wash the chives, dab dry and cut into fine rolls. Heat up the stock. Mix mustard, vinegar, stock, shallots and chives with the whisk of the hand mixer. Season to taste with salt, sugar and pepper. Let the oil run in while stirring. Clean and wash the rocket and let it drain in a sieve. Mix potatoes, cucumber, radishes, carrots and rocket. Pour vinaigrette over it.
Season to taste with salt, sugar and pepper. Let the oil run in while stirring. Clean and wash the rocket and let it drain in a sieve. Mix potatoes, cucumber, radishes, carrots and rocket. Pour vinaigrette over it. Let the salad steep for about 1 hour. Serve in cups garnished with cress as desired
With 10 people: