To serve: Reheat the soup, (if served hot), season with salt and pepper to taste. Add the cream and serve in white bowels to show off your lovely purple soup. Add a teaspoon of sour cream to each bowl and sprinkle some dill over. lf your soup is served cold, just add the cream and stir well, also add a teaspoon of sour cream to each bowl and sprinkle some dill over.