1 graham cracker crust
1 pkg. (8 oz.) cream cheese, softened
1/3 c. sugar
1 c. sour cream
2 tsp. vanilla
1 (8 oz.) container whipped topping
Fresh strawberries for garnish

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