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1½ quarts
Easy
Published 1973
Some form of potato soup is the staff of peasant life in France, Germany, and many European countries. It is also the foundation of a number of classy soups such as watercress, spinach, sorrel, or broccoli, all delicious served hot or cold. And, as no doubt everybody has discovered, vichyssoise is just potato soup showing off.
Melt the butter in a heavy, enamel-lined casserole (plain iron will discolor this soup). Cut off most of the green tops of the leeks; split the leeks lengthwise almost through so that you can get at the sand lodged there. Wash thoroughly under cold running water and slice thinly. Simmer them slowly, covered, in the butter over a very low heat until transparent. Add potatoes and chicken broth an
