Preheat the oven to 350°F (175°C). Grease an 8-inch round cake pan and line the bottom with parchment paper.
In a large bowl, whisk together the almond flour, coconut flour, cocoa powder, monk fruit sweetener, baking powder, and salt.
¾ cup almond flour, 2 tbsp coconut flour, ¼ cup cocoa powder, ¼ cup monk fruit sweetener, 1 tsp baking powder, ¼ tsp salt
In a separate bowl, whisk the eggs, Greek yogurt, almond milk, vanilla extract, and melted coconut oil until smooth. Pour the wet ingredients into the dry ingredients and stir until just combined. Fold in chocolate chips if using.
2 large eggs, ½ cup Greek yogurt, ¼ cup almond milk, 1 tsp vanilla extract, 3 tbsp coconut oil, ¼ cup dark chocolate chips
Pour the batter into the prepared pan and spread evenly. Bake for 18–22 minutes, or until the top is set and a toothpick inserted into the center comes out with a few moist crumbs.
Let the cake cool completely in the pan for at least 15 minutes, then remove and transfer to a serving plate.
In a small bowl, whisk together the Greek yogurt, cocoa powder, monk fruit sweetener, and vanilla extract until smooth and creamy.
¾ cup Greek yogurt, 2 tbsp cocoa powder, ½ tsp vanilla extract
Transfer the mousse to a piping bag (or a zip-top bag with the tip cut off).
Once the cake is cool, pipe the chocolate mousse around the edges or in decorative swirls on top. Add fresh raspberries over the top of the cake or nestle them into the mousse for a beautiful finish.
¼ cup raspberries