Boil your beans till tender. You can add potash to soften it. Sieve and keep aside

Grind your tattase rodo and onion to a paste. Put pot on fire and add your oil. Fry your onion and pepper paste.

Add your beans, crayfish, salt,dried fish, seasoning and enough water or stock to thoroughly cook your beans. Stir very well, taste and correct the seasoning. Cover and allow to cook.