Drain the anchovies well, and leave them in a colander for ten minutes, so that they give off as much oil as possible.
Meanwhile, peel the apple and grate it (with the large holes of the grater).
Cut the preserved lemon in half, put one half in the fridge. Remove аll thе рulр to keep only the skin. Cut it into very small pieces.
Chop the onion half very finely.
Also cut the malossols into very small cubes.
Cut the anchovies into very small pieces too.
Sauce
Mix the honey mustard with the cream.
Add salt and pepper.
Assembling and resting
Cover the salad with the sauce and mix well. Taste and adjust the seasoning if necessary.
Leave in the fridge for at least 30 minutes before serving.
Notes
Theoretically, vorschmack is made with hеrrіng mаrіnаtеԁ in oil. You can't find them in Morocco, so until I make my own rollmops in season, I decided to use anchovies marinated in oil. They are a bit stronger, but in the same range of taste.