Dice salami and put in a bowl. To that add hard-boiled eggs, diced also. Salt and pepper.
Mix together, add yoghurt and a bit of sour cream. Stir together.
To make homemade mayo put in a blender rest of sour cream, cooked and peeled potato, mustard, onion and salt. When blended stir into prepared mixture. Thus place to the fridge to chill.
Serve well chilled with fresh bread.