Preheat oven to 350 degrees F (175 degrees C). Line1 6-inch cake pa with parchment paper. Spray well with Primal Kitchen avocado oil spray. Set aside.

In a large clean bowl, whip egg whites with a pinch of salt and the cream of tartar until foamy (save the yolks for "healthified" creme brule, "healthified" coconut custard, OR "healthified" ice cream).

Mix on high speed until very stiff (you will be able to put bowl upside down and the whites won't fall out).

Meanwhile, in a medium bowl, sift the sweetener, cocoa powder and Primal Kitchen collagen together and set aside.

Once the whites are stiff, gently fold in the cocoa mixture. Add your favorite extract flavor. Stir to combine.

Place into the mixture onto the prepared cake pan.

Bake for 20-25 minutes or until golden brown and cooked through.

Place the cakes into the fridge to cool. Can be frozen for up to a month.

Cut the cake into cubes and place into a trifle bowl like THIS.

To make the frosting. Using a hand mixer, beat the sweetener, butter, and peanut butter together until smooth. Add the almond milk, vanilla and salt. Beat on medium-high speed for 2 minutes until combined. Add more powdered sweetener if frosting is too thin or another teaspoon of almond milk/cream if frosting is too thick. Taste and adjust sweetness to your liking, add another tablespoon of peanut butter if desired.

Place one layer of cubed cake onto a serving platter (or Trifle Bowl). Dollop a few tablespoons of the frosting over the layer. Repeat with remaining layers.

Place in the fridge to cool.

Meanwhile, make the chocolate ganache. Place the cream and natural sweetener in a saucepan over medium heat. Bring to a simmer. Remove from heat and add the finely chopped chocolate, extract and salt. Stir, then allow to sit for 3 minutes. Stir again until completely smooth. Taste and adjust sweetness to your liking. Allow to cool a little before placing on the cake otherwise the frosting will melt.

Remove the cake from the fridge and pour the ganache over the cake. Place back in the fridge to cool. Garnish with curls of sugar free chocolate from The Good Chocolate if desired.