Chocolate Hazelnut Mousse Cake – Low Carb and Gluten-Free

Name: Chocolate Hazelnut Mousse Cake – Low Carb and Gluten-Free
Cuisine: European, Mediterranean, French
Ingredients: 1½ cups Hazelnut meal; 3 tbsp unflavoured whey protein powder; 1 tsp baking powder; 1/4 tsp salt; 2 tbsp butter (softened); 1/4 cup Swerve Sweetener or granulated erythritol; 2 tbsp hazelnut oil; 1 large egg; 1/2 tsp hazelnut extract; 1/8 tsp stevia extract; 1/4 cup almond milk; 2 tbsp butter; 3 oz high % cacao (chopped (I used Scharffen Berger 82%); 3 large eggs (separated and at room temperature); 4 to 6 tbsp hot water; 1/4 cup powdered Swerve Sweetener or powdered erythritol; 1/8 tsp salt; 1/8 tsp cream of tartar; 1/2 cup heavy cream