Are the nights drawing in yet?
Wash and chop 4-5 leeks and 6 medium-sized peeled potatoes.
Sweat them slowly in a large, lidded pan with a crushed clove of garlic and a chopped onion. About 10 minutes is fine. Meanwhile, boil your kettle.
Now, add half a pint of milk, a pint and a half of boiling water and 4 teaspoons of Marigold vegetable stock. Pop the lid on and simmer for 30 minutes, stirring occasionally.
Finally, add about 60g watercress, saving a few sprigs as a garnish. Let this steam for about two minutes before skooshing it all up with your hand blender, adding plenty of black pepper and perhaps salt. Drop a few watercress leaves over the top.