In a medium bowl add mascarpone, whipping cream and sugar. Whip until quite thick.
In a medium bowl add the chocolate milk, dunk Lady Fingers one at a time turning to coat but do not leave submerged.
Add in a single layer in baking dish 7½ x 6 x 2¼ inches (20 x 15 x 6 cm), 7-8 cookies to each layer. Spread with ⅓-½ of the cream mixture (depending on how many layers you want to make).
Sprinkle with chocolate flakes (if desired) and continue with remaining 1-2 layers. Sprinkle top layer with chocolate flakes or dust with cocoa powder just before serving. Refrigerate at least 5 hours or better still over-night before serving. Enjoy!
Notes
Tiramisu can be left at room temperature no more than 2 hours, then be sure to store it covered in the fridge, it will last up to four days in the fridge.Tiramisu can also be frozen, be sure to cover well and place in an airtight freezer bag or container, it will keep in the freezer for up to two weeks. Thaw the dessert in the refrigerator.