Fermented Corn Dough
Fermented ground-corn dough with a tangy, sour taste — the essential base of banku, kenkey, and other Ghanaian staples.
A traditional fermented mixture of ground dried corn, also called 'corn dough' or 'banku flour' in Ghana. The fermentation process (typically 2-4 days) gives it a distinctive tangy, slightly sour taste that's essential for authentic banku, kenkey, and other Ghanaian staples. The dough ranges from white to slightly yellowish in color.
What it tastes like
Distinctly tangy and sour with a complex, almost yeasty depth from fermentation. The sourness is balanced and pleasant, similar to sourdough bread. The flavor mellows when cooked and pairs perfectly with rich, savory soups and stews. Less fermented dough is milder; longer fermentation produces stronger flavor.
Background
Corn dough fermentation is an ancient preservation and flavor technique practiced across Ghana for centuries. Different regions have variations - the Ga people are famous for their kenkey (fermented corn dough dumpling), while banku is popular among the Akan and Ewe. The fermentation process was developed long before refrigeration to preserve corn during the hot season.
Substitutes for Fermented Corn Dough
- Fresh ground cornmeal + 1 tbsp lemon juice or vinegar (mimics sourness, different texture)
- Masa harina (Mexican corn flour, different flavor)
- Polenta/grits (very different texture and flavor)
- Commercial 'banku mix' or 'kenkey flour' (acceptable convenience option)
Where to buy it
African grocery stores sell pre-fermented dough (fresh, refrigerated, or frozen). Fresh dough is preferable. Some stores sell 'banku flour' which is dried fermented corn flour - just add water. Online African food retailers stock frozen versions that ship well.
To make at home:
1. Soak dried corn overnight
2. Grind to a smooth paste
3. Mix with water, cover loosely
4. Let ferment 2-4 days at room temperature
5. It's ready when pleasantly sour