Cut the Lyoner and cheese into thin strips of equal length. Peel the onion, cut into thin half-rings and briefly boil (max. 2 minutes) in water (swell). Cut the pickles into small cubes. Now put everything in a bowl.
For the dressing, mix the walnut oil with raspberry vinegar, lemon juice, salt, pepper and sugar (add 1 teaspoon of Dijon mustard if necessary).
Mix the ingredients and the dressing together and let it steep for approx. 2 hours until you are ready to eat it.
Serve with Brägele (fried potatoes) and Bibeles cheese (quark with chives, salt and pepper).