Choc-Cherry Tiramisu Ice-Cream Cake

Grease a 9cm-deep, 20cm (base) square cake pan. Line with baking paper, allowing a 6cm overhang on all sides. Place coffee, marsala (if using) and boiling water in a shallow dish. Stir to dissolve coffee. Set aside to cool.
Using and electric mixer, beat cream cheese until smooth. Add vanilla ice-cream, 1 cup at a time, beating well after each addition.
Spoon half the cream cheese mixture into prepared pan. Smooth surface. Dip 9 biscuits, 1 at a time, into coffee mixture, turing to coat. Place, in a single layer, over cream cheese mixture. Add Cherries to remaining cream cheese mixture. Stir until just combined. Spoon cherry cream cheese mixture over biscuits. Smooth surface. Dip 9 biscuits, 1 at a time, into coffee mixture, turning to coat. Place, in a single layer, over cherry cream cheese mixture. Cover with plastic wrap. Freeze 1 to 2 hours or until firm.
Spoon chocolate ice-ceam into a large bowl. Set aside for 10 minutes to soften. Stir until smooth. Dip remaining 9 biscuits, 1 at a time, into coffee mixture, turing to coat. Place, in a single layer, over chocolate ice-cream. Cover with plastic wrap. Freeze overnight or until firm.
Stand at room temperature for 5 minutes to soften slightly. Turn out onto a plate. Top with cream, cherries, Flake, chocolate curls and cachous. Serve.
NOTE: For a non-alcoholic version, omit marsala and add extra 1/4 cup boiling water to coffee in step 1.