Put the onions and leek in a saucepan and sweat vigorously with 2 tablespoons of stock while stirring. Pour in the rest of the broth, cook for approx. 5 minutes and then remove half of the vegetables with a slotted spoon.
Add the green spelled and bay leaves to the soup, cook for 15 minutes on low heat and then remove the bay leaves.
Puree lightly creamy with a blender, add the vegetables and salmon strips and season with salt and pepper.