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Easy
Published 1935
Pour boiling water over the mushrooms and let them stand for a few minutes. Then boil them in the stock till tender, remove when done, chop and return to the stock. Melt the butter in a small saucepan, stir in the flour, without browning, moisten with a few tablespoons of the hot stock and stir into the soup. Just before serving, add the sour cream. Nouilles are sometimes serve