Line a 11×7 pan with parchment paper. Preheat oven to 350.
In a bowl of a food processor combine almond flour, cocoa powder, low carb brown sugar and baking powder, pulse until well combined. Add the rest of the ingredients to the bowl and run the food processor until well combined.
Pour the batter into the prepared pan and bake for 25-30 minutes or until a toothpick comes out clean. Allow the cake to cool completely before frosting it, see above for frosting options. After frosting the cake it's best left in the refrigerator over night.