Combine almond flour, baking powder, salt, and erythritol in a bowl and mix.
Add cold butter and mix until the dough becomes crumbly.
Add egg, coconut milk, and vanilla extract and mix until the dough forms into one mass.
Add dark chocolate chips and mix evenly.
Shape the dough into a circle and cut into 6 wedges.
Bake in an air fryer or oven preheated to 180°C for 20 minutes.