2 cups   (12 oz. pkg) Semi-sweet choc. chips
 3 pkgs.  (8 oz. ea.) cream cheese, softened
 1        14oz. can sweetened condensed milk
 4        eggs
 2 tsps.  vanilla
 1        prepared chocolate cookie crumb crust
 Heat oven to 300. In heavy saucepan, over low heat, melt chips, stirring
 constantly. In large bowl, beat cream cheese till fluffy. Beat in milk
 until smooth. Add melted chips and remaining ingredients.  Pour into
 prepared crust.  Bake 1 hour and 5 minutes, until center is set.  Yummm!