Preheat your oven to 350°F (175°C).

In a large mixing bowl, combine the cocoa powder, almond flour, erythritol, and salt.

Melt the coconut oil gently using a microwave or stovetop, then allow it to cool slightly.

Add the melted coconut oil and vanilla extract to the dry ingredients, mixing until fully combined.

Pour the batter into a greased baking dish or lined with parchment paper.

Bake in the preheated oven for 20-25 minutes or until a toothpick comes out clean.

Remove from the oven and allow to cool in the pan for at least 10 minutes before transferring to a wire rack.

Slice and serve once completely cooled.