In my opinion this is actually medicine. It does not matter what you are suffering from, this soup will make you feel better. I cannot say more than that except you have to try it!
Melt the butter with the oil in a saucepan. Add the onion and celery, put a lid on the pan, reduce the heat to medium-low and cook slowly for 5 minutes (time it). Mix in the diced potato and cook for about 2 minutes, stirring regularly.
Add the sweetcorn and stir in the flour. Add the wine. As soon as it begins to boil and thicken, stir in