Mix almond flour and baking powder together.
Add eggs, erythritol, and vanilla extract and mix well.
Pour the batter into an oven pan and bake in a preheated oven at 180℃ for 15 minutes.
Evenly mix mascarpone cheese, heavy cream, and erythritol.
After cooling the baked cake, soak it with coffee.
Spread cheese cream over the cake and smooth it out.
Sift cocoa powder on top.
Let it set in the refrigerator for at least 2 hours before eating.