Vichyssoise - cooking recipe

Ingredients

4 leeks
1 Tbsp. butter
5 large red potatoes or 4 Idaho bakers
1 Tbsp. salt
1 c. thick cream *
4 Tbsp. minced chives
1 medium onion
3 c. water
1 c. milk, half and half
freshly ground black pepper

Preparation

*Mix 1/3 cup sour cream with 2/3 cup unpasteurized heavy cream, shake well and let stand at room temperature for 8 hours.