- Preheat your oven to 350 degrees F. Prepare your bundt pan by greasing it with coconut oil and set it aside. 
- In a mixing bowl, add the softened butter and low carb sweetener and mix with a paddle attachment. Allow this to mix until it is well combined. 
- Next, add the softened cream cheese and allow it to incorporate into the butter mixture so there are no chunks of cream cheese visible. 
- Add the room temperature eggs, one at a time and allow them to be mixed in thoroughly before adding another. Then mix in the vanilla. 
- Finally, add the baking powder, xanthan gum, salt, and almond flour to the mixer and beat until it is all combined. 
- Take half the batter and place it in a separate mixing bowl. Add the 1/4 cup of cocoa powder and blend it in well. 
- Use a two piping bags or plastic bags with the tips cut off. Add the batter of the vanilla to one and chocolate to the other. 
- To form the marble cake pipe stripes of vanilla, then chocolate, then vanilla all along the inside base. The striped layers should be touching. Repeat this again with a second layer of batter over the first but alternate. A vanilla stripe goes over a chocolate and a chocolate stripe over a vanilla. Once the second layer has been added add the rest of the batter into the pan and smooth out the top with a spatula. 
- Bake for 30-40 minutes. A toothpick should come out clean. 
- Allow the cake to be almost fully cooled before remove from the pan.To serve- Eat plain...OR add a little butter to a pan and grill each side of a sliced piece of pound cake. Add homemade sugar free whipped cream and a few sliced strawberries.