
Iru, also known as dawadawa depending on the region, originates from the Sudano-Sahelian savannas where the African locust bean tree (Parkia biglobosa) has grown wild for centuries. Rural communities learned to transform the seeds of this tree, otherwise difficult to digest, into a fermented condiment rich in flavor through skills passed down almost exclusively by women, guardians of this practice for generations. This fermentation process, similar in principle to other African and Asian fermented condiments, made it possible to preserve a seasonal resource for long periods and integrate it into daily food. Long produced within domestic or village settings, iru occupies a discreet but essential place in the culinary memory of many West African peoples, notably Yoruba, Hausa, and Dogon.
Iru is distinguished by a powerful, almost ammonia-like aroma that may surprise at first but which fades during cooking to reveal a deep, umami flavor. Its texture is pasty, sometimes stringy, reminiscent of other fermented condiments made from seeds or soybeans. Once incorporated into simmered dishes, it provides an earthy, slightly fermented note that enhances without overpowering other ingredients.
Iru traditionally accompanies everyday sauces, stews, and soups, particularly dishes based on leafy vegetables or simmered meat. It is not reserved for special celebrations but is part of daily cooking, where it serves as a flavor enhancer passed down from household to household.
Originating from the savanna zones of West Africa where the locust bean tree grows, this condiment bears different names depending on regions and languages: iru among the Yoruba of Nigeria, dawadawa in Hausa regions and in parts of Ghana and Burkina Faso. Regional variants differ mainly in fermentation duration, the final shaping of the paste (balls, patties, or loose), and the occasional addition of salt or ash according to local customs.