1 graham cracker crust
1 pkg. (8 oz.) cream cheese
1/3 c. sugar
1 carton sour cream (8 oz.)
2 tsp. vanilla
1 (8 oz.) Cool Whip, thawed
1 c. Nestles chocolate chips, melted

Beat cream cheese until smooth. Add sugar, sour cream, and vanilla. Mix well and then stir in Cool Whip. Melt chocolate chips and stir until well blended. Pour in shell and chill for 4 hours.