Peel the plantains using a sharp knife and slice them into slices. Peel the carrot and cut it into small pieces. Add the sliced plantain, chopped carrot, and 1 cup of water to a blender.
Blend until well blended and smooth.
Add 1 cup of water and star anise to a saucepan and bring the water to a boil over medium heat. Once the water comes to a boil, add evaporated milk and coconut milk and stir well.
As soon as the mixture starts to boil, reduce the heat to low. Now add the plantain puree and stir until combined.
Simmer on low heat, stirring frequently, until the plantain is cooked and the porridge is thick, smooth, and creamy (10-15 minutes). If the porridge tastes grainy, it needs to cook more.
Add vanilla extract, brown sugar, and cinnamon powder, and stir to combine. Check for sugar and add more if needed.
Transfer the hot porridge to serving bowls. Garnish with a sprinkle of ground cinnamon and serve hot.