In a mixing bowl, combine vanilla wafer crumbs, 1/4 cup sugar, and melted butter. Press the mixture onto the bottom of a 9-inch springform pan.
In another mixing bowl, beat Norman's Kosher Cholov Yisroel Cream Cheese and 1 cup sugar until smooth. Beat in eggs, one at a time, and vanilla extract.
Stir in crushed Oreo cookies and heavy cream. Pour the mixture over the crust.
Bake for 45-50 minutes or until the center is almost set.
Cool the cheesecake on a wire rack for 10 minutes.
In a small saucepan over low heat, melt semisweet chocolate chips. Stir in instant espresso powder.
Pour the chocolate mixture over the cheesecake. Cool the cheesecake completely, then cover and refrigerate for at least 2 hours before serving.