1 graham cracker crust
8 oz. pkg. cream cheese, softened
1/3 c. sugar
1 c. sour cream
2 tsp. vanilla
8 oz. Cool Whip, thawed
6 oz. bag mini chocolate chips

Beat cream cheese until smooth. Gradually beat in sugar. Blend in sour cream and vanilla. Fold in Cool Whip, blending well. Stir in chocolate chips. Spoon into crust. Chill until set, at least 4 hours.