Toast almond flour in a dry pan over medium heat, till fully golden and fragrant (2-4 minutes). Do not skip this dish, it is essential for the taste!
Put toasted almond flour, sweetner, cinnamon and salt in a small bowl (or straight into the serving container). Add in butter and coffee, mix until thoroughly combined, and form a base in your serving container. Refrigerate while you make the tiramisu cream (don't worry if it is soggy!).
Cream
Add double cream to a bowl and beat with an electric mixer until whipped (2-3 minutes). Set aside.
Fold in mascarpone, and sweetner to taste.
Layer the cream ontop of your base in the serving container and either freeze for 30 minutes or refrigerate for a couple hours (or overnight). Serve with a generous dusting of cocoa powder.