Preheat the oven to 400°Line two 9-inch cake pans with parchment paper, and grease lightly.
In a bowl, cream butter and monk fruit sweetener until thoroughly combined.
Add the egg yolks, vanilla extract, and coconut milk and continue to mix.
Slowly add coconut flour, salt, and baking powder.
In a separate bowl, whisk the egg whites until stiff peaks form.
Fold the egg whites into the coconut milk mixture, gently making sure to not over mix.
Pour the batter evenly into the cake pans. Bake for 20 minutes or golden brown.
Remove from the oven and allow to cool completely.