Turn cookies into crumbs, mix with butter, and press onto 8 inch spring form pan. Bake 5 mins on preheated 350 F. Set aside to cool.
Mix cream cheese, sugar and vanilla with electric mixer until well blended.
Beat in eggs, one at a time.
Stir in 1/2 of the white chocolate chips. Pour into crust. Sprinkle with remaining white chocolate chips.
Bake at 350 degrees F for 35 minutes or until center is almost set. Cool.
Refrigerate 3 hours or overnight.