8 oz. pkg. softened cream cheese
1/3 c. sugar
1 c. sour cream
2 tsp. vanilla
8 oz. container thawed Cool Whip
1 graham pie crust

Beat cheese until smooth, then beat in sugar. Blend in sour cream and vanilla. Fold in Cool Whip, blending well. Spoon into crust. Chill until set, about 4 hours. Garnish with fresh fruit, if desired.