Ingredients

makes 2 quarts; 4 to 6 servings

　　2 pounds leeks

　　3 tablespoons butter

　　2 thyme sprigs

　　1 bay leaf

　　Salt

　　1 pound yellow potatoes, peeled, halved or quartered, and sliced

　　6 cups water

　　1/3 cup crème fraîche or heavy cream

　　

Step 1

Trim off the root end and the tough upper greens from: 2 pounds leeks.

　　

Step 2

Cut the trimmed leeks in half lengthwise and slice thin. Rinse in a bowl of cold water. Lift the leeks out of the water to drain.

　　

Step 3

Melt over medium heat in a heavy-bottomed pot: 3 tablespoons butter.

　　

Step 4

Add the leeks along with: 2 thyme sprigs, 1 bay leaf, Salt.

　　

Step 5

Cook until soft, about 10 minutes. Add: 1 pound yellow potatoes, peeled, halved or quartered, and sliced.

　　

Step 6

Cook the potatoes for 4 minutes, then add: 6 cups water.

　　

Step 7

Bring to a boil and turn down to a simmer. Cook until the vegetables are tender, but not falling apart, about 30 minutes. When done, stir in: 1/3 cup crème fraîche or heavy cream.

　　

Step 8

Do not boil once the cream is added. Check the seasoning and adjust to taste. Remove the bay leaf and thyme before serving.

　　

Variations

Step 9

Garnish with fresh-ground black pepper and some chopped chives.

　　

Step 10

For a heartier soup, use broth instead of water.

　　

Step 11

Remove the bay leaf and the herb sprigs and purée the soup before stirring in the cream.

　　

Step 12

Omit the cream, purée the soup before serving, and garnish with a pat of parsley butter (see page 48).

　　The Art of Simple Food