Cooked Karambwanji paste is made by grinding up a cooked karambwanji with a pestle and mortar. The cooked paste may be encountered in Tai Bwo Wannai Trio, but is not used to complete the quest. The paste can be used with burnt jogre bones to create the pasty jogre bones (burnt, cooked), or with regular jogre bones to create pasty jogre bones (cooked). Both of these are useless items.
Raw karambwanji paste should instead be made by grinding raw karambwanji. This can then be used with burnt jogre bones to create the pasty jogre bones (burnt, raw) that are needed in the quest.