Preheat oven to 350 F. (180 C) on bake mode.
Butter bundt pan. Freeze pan. Spray with baking spray.
Mix listed dry ingredients. (Almond flour, coconut flour, baking soda, baking powder, xanthan gum, salt). together. Set aside
In small bowl add cocoa powder and boiling water together. It will be thick. Add in the sour cream and whisk, adding in a few tablespoons of almond milk, and Raspberry Royal flavoring. Set aside.
Beat eggs well for a few minutes with your mixer.
Slowly stream in oil. You can use either avocado oil, or extra virgin olive oil.
Add in Swerve or powdered erythritol of choice.
Add cocao powder mixture to the egg and oil mixture.
Add dry ingredients. Mix just until mixed on low. Batter will be thick.
Make sure to spray bundt pan. Add batter.
Bake 30-35 minutes. Internal temperature should reach 207 degrees F.
Once removed, rest cakes for 15 minutes before removing.
Use a knife to go around the bundt making sure it pulls away. Place cardboard over the (a cake board works well) and flip. To continue cooling, place bundt pan over the cake until it cools. This ensures moisture remains in the cake.