Place whipping cream and dark chocolate in a bowl. Place white chocolate chips in another small bowl. Microwave the bowls for 30-45 seconds until melted.
Pour the dark chocolate ganache over the frozen cheesecake.
Spoon white chocolate over the dark chocolate then run a knife through the white and dark chocolate to create a marbling effect.
Place into freezer to set before removing the cake from the black tray.
Thaw as per package directions before serving garnished with rolled cookie pieces, strawberries and mint.