This classic cold soup of all time was first served at the Ritz Hotel in New York City.
2 tablespoons butter
6 leeks, white parts only, chopped
1 onion, peeled and chopped
4 to 5 potatoes, peeled and chopped
4 cups cold water
2 cups milk
1 cup cream
Chopped chives
Melt butter in soup kettle. Saut