2 egg whites
1 c. sugar
1 tbsp. lemon juice
1 pkg. frozen raspberries
1 pkg. Cool Whip
Graham crackers

Combine egg whites, sugar, lemon juice, and berries. Blend for 15 minutes, starting on low and increasing to high speed. Add Cool Whip into mixture. Place crushed graham crackers in small bowl and add mixture. Chill.