Preheat oven to 160°C and lightly grease a 6 inch baking dish. In a medium bowl, whisk together the almond flour, cocoa powder, sweetener and baking powder. Stir in the water, oil or melted butter, egg and vanilla extract until well combined. Pour batter into prepared skillet and sprinkle with finely chopped Atkins Milk Chocolate bar. Bake 13 to 16 minutes, or until puffed but not quite set. The brownie should jiggle a bit in the centre when shaken. Remove and serve immediately.
** suitable for phases 2-4