Cut the cleaned and washed beans into pieces and the peeled potatoes into cubes.
Bring the broth to the boil and add the potatoes, beans and savory and cook for approx. 25 minutes. Mix the sour cream with about 2 tablespoons of flour and stir into the soup. Season to taste with salt and pepper. Warm sausages in the soup - I cut them into pieces beforehand. Serve sprinkled with the parsley.