Mix almond flour and baking powder.
Add egg, erythritol, and melted butter to make the batter.
Bake the batter to make a cake sheet.
Mix cream cheese, heavy cream, erythritol, and vanilla extract to make the cream.
Soak the baked sheet in espresso.
Layer the sheet and cream alternately.
Sprinkle cocoa powder on top.
Chill in the refrigerator for at least 2 hours.