You can prepare the soup with leftover mashed potatoes or with three or four floury potatoes.
° 1 tbsp of butter
° 1 finely chopped onion
° 800 g mashed potatoes from the day before
° 8 dl vegetable broth
° 0.5 dl cream
Heat the butter in a saucepan, add the milk and brown. Add the puree and slowly pour in the broth while stirring. bring to a boil over medium heat.
Stir in the cream and season. Cut the chives with scissors and stir some into the soup and sprinkle the rest of the soup and serve.