Butterscotch Sauce
["1 well-beaten egg yolk", "1/4 c. butter", "1/4 c. water", "2/3 c. brown sugar", "1/3 c. light corn syrup"]
["Combine all ingredients in top of double boiler and mix well. Cook over simmering water until thick, stirring frequently.", "Beat before using.", "Serve hot or cold over ice cream."]
["egg yolk", "butter", "water", "brown sugar", "light corn syrup"]