In a large bowl, mix the cassava flour with 1 cup of water until smooth.
In a large pot, heat the palm oil or vegetable oil over medium heat.
Add the finely chopped onion and cook until softened and translucent, about 5 minutes.
Stir in the minced garlic and chopped hot peppers, cooking for another 1-2 minutes.
Pour the cassava flour mixture into the pot, stirring continuously to prevent lumps.
Continue to cook over low heat, stirring frequently, for about 10-15 minutes, or until the mixture thickens and becomes smooth.
If using, stir in the ground crayfish or shrimp powder.
Add salt to taste and continue to cook for another 5 minutes.
Garnish with chopped fresh cilantro or parsley.
Enjoy your meal!