Buttermilk Sherbet
["1 qt. buttermilk", "1 c. granulated sugar", "1 large can crushed pineapple with juice", "2 egg whites, stiffly beaten", "1 tsp. vanilla"]
["Thoroughly mix buttermilk, sugar and pineapple.", "Pour into ice cube tray and freeze to a mush.", "Pour mixture into a large bowl and beat until smooth.", "Blend in the beaten egg whites and vanilla.", "Return to refrigerator tray.", "An increase in volume now will require two trays.", "Freeze until firm."]
["buttermilk", "sugar", "pineapple", "egg whites", "vanilla"]