Igbo Yam Porridge

Yam is not simply a staple crop among the Igbo of south-eastern Nigeria. It is the crop, tied to land, status and the agricultural calendar in a way no other food is, and the yam that goes into this porridge carries that weight into an ordinary weekday meal. Yam porridge is the most direct way to eat it. Slices are cooked until they begin to break down and thicken their own liquid, so the dish is both the yam and the sauce it makes. What marks the version out as Igbo rather than as one of the several other Nigerian yam pottages is the seasoning: ogiri, the fermented seasoning made from oil bean or melon seed, and uziza leaves, whose peppery aroma goes in at the very end. Palm oil supplies the colour and the richness, crayfish the savoury base. Ogiri is the ingredient that decides the dish. Its fermented depth is what separates an Igbo yam porridge from a Yoruba or Hausa preparation of the same root, and households that leave it out are making something else. The porridge is eaten at breakfast and as a light lunch, and it belongs to ordinary domestic cooking rather than to any occasion.