If using boukari (fermented cassava dough), break it into small pieces and set aside. If using cassava flour, skip this step.
In a large skillet or saucepan, heat the palm 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.
Add the boukari pieces or cassava flour to the skillet, stirring to combine with the onion and pepper mixture.
Gradually add the water, stirring constantly to avoid lumps. Cook for about 10-15 minutes, or until the mixture thickens and has a smooth consistency.
Stir in the ground crayfish or shrimp powder (if using) and salt. Continue cooking for another 5 minutes, or until the boukari is fully cooked and the flavors are well blended.
Garnish with chopped fresh cilantro or parsley before serving.
Enjoy your meal!