Wash the lime, cut off 4 slices to garnish. Wash the chives and chop finely. Mix with crème fraîche and horseradish. Season with salt, pepper and a few drops of lime juice
Spread salmon on foil in 2 rows slightly overlapping to form a rectangle. Spread cream on top, leaving approx. 2 cm free all around. Roll up the salmon firmly and chill for at least 1 hour.
Beat vinegar, salt, pepper, a little sugar and oil. Clean, wash and pluck the rocket. Wash dill and chop except for a little bit. Mix everything. Cut salmon roll into about 16 slices. Arrange on the salad. Garnish