1 Keebler Ready Crust pie crust
2 (8 oz.) pkgs. cream cheese, softened
1/3 c. sugar
2 tsp. vanilla
1 (8 oz.) container Cool Whip topping, thawed
1 c. sour cream

Beat cheese until smooth; gradually beat in sugar. Blend in sour cream and vanilla. Fold in whipped topping, blending well. Spoon into pie crust. Chill until set, at least 4 hours. Garnish with fresh strawberries or blueberries if desired.