Potato Leek Soup (Vichyssoise)
There is nothing better on a chilly, damp day than a steaming bowl of potato leek soup; and conversely, few things are as delicious and refreshing on a hot, sweaty day than a bowl of ice cold vichyssoise.
You'll need 1 1/2 pounds of leeks after they've been trimmed. Leave about an inch of the dark green.
Here's Chef John's recipe for homemade crème fraiche.