Chocolate Cookie Cheese Cake

2 2/3 Cups chocolate sandwich cookie crumbs (about 28 cookies) (I generally put these in the food processor)

1/3 Cup butter or margarine, melted

3 (8-ounce) packages cream cheese Softened

1 (14-ounce) can Sweetened Condensed Milk

3 eggs

1 tablespoon vanilla extract

16 Chocolate sandwich cookies, coarsely crumbled

1 1/2 cups sour cream

2 tablespoons sugar

1/2 teaspoon vanilla extract


Combine cookie crumbs and butter, mixing well.  Press firmly on bottom and halfway up the sides of a 9-inch springform pan.  Chill.


Beat cream cheese until fluffy in a large mixing bowl; gradually beat in sweetened condensed milk until smooth.  Stir in eggs, mixing well.  Add 1 tablespoon vanilla.  Fold crumbled cookies into cream cheese mixture.  Pour into prepared pan.  Bake at 400 for 5 minutes; reduce oven temperature to 325 and continue baking 55 to 60 minutes.  (Top will be set and center may be soft but will firm when chilled.)  Combine sour cream, sugar, and remaining 1/2 teaspoon vanilla; stir will.  Gently spoon sour cream mixture evenly over cheesecake, and spread evenly to edges of pan.  Bake an additional 10 minutes.  Cool to room temperature; cover and chill overnight.  Use the excess cookies for decoration.