2 graham cracker crusts
1 - 8 oz. pkg. cream cheese
1/2 c. sugar
1 c. (1/2 pt) sour cream
2 tsp. vanilla
1 - 8 oz. Cool Whip
16 oz. mini chocolate chips

Beat cream cheese until soft. Slowly beat in sugar. Blend in sour cream and vanilla. Fold in Cool Whip; stir in chips a little at a time. Put in pie crust and chill for 4 hours.