Pre-heat oven to 180 ° and lightly grease a loaf tin with baking parchment paper.
In a food mixer, add the avocados, eggs and butter. Mix until a smooth consistency.
Sieve the flour and cocao powder into a large mixing bowl. Add the almond flour, baking powder and lo han guo. Mix all of the dry ingredients in together.
Next, gradually add the avocado mixture into the dry ingredients making sure to combine the ingredients together well. Add 2-3 tbsp of milk to loosen the mixture slightly.
Spoon the mixture into the prepared tin and spread mixture evenly. Pop into the oven and cook for about 30-35 minutes. To check that the chocolate avocado loaf is cooked all the way through put a fine skewer through the centre. If it comes out clean then it will be cooked.
Leave to cool for a few minutes before using a palette knife to gently loosen the loaf out of the tin. Remove the baking paper and pop onto a wire rack to cool completely. Once cooled, cut into slices and serve.