Preheat the oven to 180°C (356°F).
Mix almond flour, cocoa powder, and baking powder together.
In another bowl, mix eggs, erythritol, and coconut oil.
Combine the two mixtures and mix evenly.
Fill the muffin molds with the batter.
Bake in the oven at 180°C (356°F) for 20 minutes.