The flesh of sweet potatoes (Ipomea batatas) ranges in colour from white through to orange and red – outside of Nigeria, the orange-fleshed ones are most readily available. However, it is possible to find the white-fleshed variety in ethnic shops. I prefer the latter as they are not as sweet and are firmer.
They are more nutritious than other sources of carbohydrates eaten in Nigerian being rich in complex carbohydrates, fibre and various vitamins and minerals.
Best cooked in their skins to preserve their minerals, vitamins and proteins – boil, bake, roast or mash them as with ordinary potatoes.