Boil the beans firm to the bite, quarter the eggs or cut them in an egg slicer, cut tomatoes into eighths, drain capers and olives; Rinse, dry and slice the anchovy fillets.
For the marinade: whisk together the vinegar, spices and mustard, whisk in the oil very slowly in a thin stream until a creamy marinade is formed.
Let the marinade with half of the olives, capers, anchovy fillets and a little tuna soak for at least 45 minutes. Arrange the remaining ingredients on a platter and spread the marinated mixture on top; If the preparation time is longer, some of the beans can also be marinated.
Important: the eyes eat too! The kick comes from the marinade, but for the eye, a large part of the ingredients (eggs and tomatoes anyway, but also some of the beans, olives and tuna meat) must be draped unmixed on a nice plate or bowl. At first there was a lot of fuss, but then it was very popular with the guests!