French Sorrel Soup
Wash 1 quart of sorrel and put it to cook in cold water, remove from the fire in ten minutes and drain and chop fine. Put 2 tablespoons of butter in a saucepan and fry in it when melted 1 small onion chopped fine; then add the sorrel to this and stir for three or four minutes and add 2 cups of cold milk and let simmer for five minutes. Dissolve in 1 cup of milk, 1 teaspoon of sugar and 1 tablespoon of potato flour (or other thickening), and add to the boiling soup; then strain, reheat, and serve with the addition of 1 tablespoon of whipped cream.