Preheat the oven to 350°F. Grease 3 - 7 inch cake pans, (or 1 7 inch springform pan). Set aside.

To make the cake, whip the egg whites until stiff peaks form. In a second bowl, combine the egg yolks, sweetener, butter, and vanilla and whisk until well blended. In a third bowl, whisk the dry ingredients together until well blended. Gently fold the egg yolk mixture into the whipped whites, then slowly fold in the dry mixture. Fill the greased cake pans with the batter, filling each about three-quarters full. Bake for 30-35 minutes, until a toothpick inserted in the center of the cake comes out clean. Let cool completely in the pan before removing.

While the cakes are cooling, make the filling. Place the softened cream cheese, butter and sweetener in a small bowl. Using a hand mixer, combine until smooth. Slowly add the cashew milk to thin the filling.

Reserve a few tablespoons of the filling for the white swirl on the top. (Leave the reserved filling on the counter; if the filling sets in the refrigerator, it will become too hard to pipe.)

Once the cakes are cool. Place one layer of cake onto a serving platter. Then use a sharp knife to cut a large hole in the center of the middle layer, leaving about 1 inch of cake on the edges. Place that layer on top of the first layer.

Fill the hole with the cream filling.

Top the filling with the third layer of cake.

To make the ganache, place the cream in a small saucepan over medium high heat. Heat until very hot but not boiling. Remove from heat and add the chopped chocolate. Stir until chocolate is melted, then add sweetener, and vanilla. Stir until smooth and thick.

Pour the ganache over the cake and smooth over the cake using a knife to cover the cake completely. Place in the refrigerator for 5 minutes to set the ganache. Remove from the fridge and, using the reserved filling, pipe little swirls on the top of the cake, moving from one end to the other.

Store extras in an airtight container in the refrigerator for up to 4 days or in the freezer for up to 1 month. Allow to thaw to room temperature before serving.