Cut the chicken into pieces and discard the backbone.
Place the onion, garlic, bouillon, paprika, cilantro, njansa, parsley, basil, habanero and green onion in a food processor. Grind into a puree. Add a little water to get it flowing if needed.
Add the chicken pieces to a large soup pot or Dutch oven then add the water and pepper paste.
Bring to a boil then simmer until the chicken is tender. Add salt to taste before serving.
Prepare the fufu:
Peel the yuca with a potato peeler to remove the outer layer down to the white inner part. Cut into pieces and remove the inner fibrous strands. Cut into 2 inch cubes.
Peel the plantain by taking a small sharp knife to split the peel and pry with your thumb. Cut into 2 inch cubes.
Place all the cubes into a blender or food processor, add 1.5 cups to 2 cups of water and blend into a fine purée or paste. 2 cups of water works better if you want it softer.
Heat the paste in a saucepan over medium heat. Stir continuously with a wooden spoon or spatula for 8 to 10 minutes. Keep stirring to remove any lumps. The paste will turn more yellow as it cooks.
Add ¼ cup water, reduce the heat to low. Cover and cook for another 8-10 minutes.