In a large pot, bring 4 cups of water to a boil.
Gradually add the cassava flour (and plantain flour, if using) to the boiling water while stirring continuously to avoid lumps.
Reduce the heat to low and continue stirring until the mixture thickens and starts to pull away from the sides of the pot. This should take about 10-15 minutes.
If desired, add salt to taste.
Remove the pot from the heat and let the fufu cool slightly.
Once it’s cool enough to handle, knead it with a wooden spoon or spatula to make it smooth and pliable. You can also use your hands if they are clean and oiled.
Form the fufu into balls or mounds and serve with your favorite soups, stews, or sauces.
Enjoy your meal!