Pound Cake Tiramisu

recipe [url]Almond-Crusted Butter Cake∞https://alldayidreamaboutfood.com/2012/01/almond-crusted-butter-cake-low-carb-and-gluten-free.html[/url], made with vanilla instead of almond extract and leaving out the sliced almonds.

strongly brewed coffee, divided

dark rum (optional)

mascarpone cheese, room temperature

powdered [url]Swerve Sweetener∞http://www.swervesweetener.com/103.html[/url]

liquid stevia extract or another 3 tbsp [url]Swerve Sweetener∞http://www.swervesweetener.com/103.html[/url]

whipping cream, room temperature

Cocoa powder for dusting

dark chocolate, shaved, for garnish