1 (10 oz.) pkg. frozen strawberries or raspberries
1 c. sugar
1 tbsp. lemon juice
2 egg whites
1/8 tsp. salt
1/2 c. heavy cream, whipped
1 tsp. vanilla
1 (10") baked pie shell or crumb crust

Measure thawed fruit and its juice, sugar, lemon juice, egg whites and salt into large mixer bowl. Beat on high speed until thick and creamy, about 15 minutes. Fold in whipped cream and vanilla. Spoon into baked pie shell and freeze until firm.