Tasty Pineapple Sherbet(Low Calorie)  
["1/2 envelope unflavored gelatin", "2 c. buttermilk", "1 c. sugar", "1 (9 oz.) can crushed pineapple", "1 tsp. vanilla", "1 egg white, stiffly beaten"]
["Soften gelatin in 2 tablespoons cold water.", "Dissolve over hot water.", "Combine buttermilk, sugar, pineapple and vanilla.", "Add gelatin.", "Fold in egg white.", "Turn into refrigerator tray.", "Freeze until firm, stirring once.", "Yields 6 to 8 servings."]
["unflavored gelatin", "buttermilk", "sugar", "pineapple", "vanilla", "egg"]