1 liter strong whey
4-5 tbs sugar
1 cinnamon stick
50 g potato flour or cornstarch
100 ml cold water
Cook the whey with the cinnamon and sugar for 5-10 minutes. Make a paste from the starch and cold water and stir into the soup to thicken. Pour into a bowl, sprinkle with sugar and cool. Red food colouring or crowberry (or redcurrant or cranberry) concentrate can be used to give the soup some colour.