CHOCOLATE GANACHE: Stir together heavy whipping cream and corn syrup in a microwave safe bowl. Heat on high power for 45 seconds. Pour chopped chocolate into hot cream and let sit for 3 minutes. Stir until smooth. If needed, heat for 10 second increments, stirring after each until melted. Allow to cool until slightly thickened. Pour 3/4 of the chocolate ganache over the top of the cheesecake.