1 graham cracker crust
1 (8 oz.) pkg. cream cheese, softened
1/3 c. sugar
1 c. (1/2 pt.) sour cream
2 tsp. vanilla
1 (8 oz.) container whipped topping
1 c. (6 oz.) mini chocolate chips

Beat cream cheese until smooth; gradually beat in sugar. Blend in sour cream and vanilla. Fold in whipped topping, blending well. Stir in mini chocolate chips. Spoon into crust. Chill until set, at least 4 hours.