From the quiet streets of Kano to the bustling corners of Lagos, a savoury aroma brings people together: the smell of freshly fried Kosai. As the morning sun rises over the quiet village of Zaria, casting golden hues on the dusty roads as vendors set up their stalls. Amidst the clamour of greetings and laughter, the familiar sound of sizzling oil draws you closer. There, at the corner of the market, a woman deftly drops spoonfuls of bean batter into a pot of hot oil, creating small, round bean cakes that are crispy on the outside and fluffy on the inside. Kosai is a beloved snack that brings warmth and comfort with every bite.Â
The key to the perfect Kosai begins with the beans. Traditionally, black-eyed peas or cowpeas are used, each bean carefully soaked and peeled by hand. It’s a labour of love, often done in the early morning or the night before. You can almost hear the laughter of children helping their mothers, the gentle hum of a family song filling the air. Once stripped of their skins, the beans are transformed into a smooth batter that promises something extraordinary.
Blending the beans is where the magic begins. The smoothness of the batter is vital—too thick, and your Kosai will be heavy; too thin, and it won’t hold its shape in the oil. The right consistency is creamy, almost like a thick pancake batter. We mix finely chopped onions and a touch of Scotch bonnet pepper for that signature heat. A pinch of salt to season, maybe a hint of garlic, or a sprinkle of ground crayfish for those who like to add a personal twist. Every spoon stir is a step back into memory, into kitchens filled with the warmth of family and the promise of good food.
The real test of a Kosai maker’s skill lies in the frying. Heat the oil just right—not too hot, not too cool. As the batter hits the hot oil, it should sizzle immediately, puffing up into golden spheres. There’s a rhythm to this—turning each piece, letting them cook evenly on all sides. The scent of frying Kosai is intoxicating, drawing neighbours and passersby alike, their mouths watering in anticipation. The first bite of a freshly fried Kosai is a revelation. The crisp, golden crust gives way to a soft, steaming interior, rich with the flavours of beans, onions, and spices. It’s a taste that’s both humble and rich, a testament to the beauty of Nigerian cuisine.
How to Prepare Kosai
Ingredients
- Â Â 2 cups black-eyed peas (or cowpeas)
- Â Â One medium onion, finely chopped
- Â Â 1-2 Scotch bonnet peppers, chopped (adjust to your heat preference)
- Â Â One teaspoon salt (to taste)
- Â Â One tablespoon of ground crayfish (optional for extra flavour)
- Â Â Vegetable oil (for frying)
- Â Â Water (as needed)
MethodÂ
Step 1: Soak and Peel the Beans
Start by soaking the black-eyed peas in water for about 30 minutes to an hour. This softens the skin and makes them easier to remove. After soaking, rub the beans between your hands to peel off the skins. Rinse and repeat until most of the skins are removed. You can also pulse the beans briefly in a blender with water to loosen the skins, then rinse to separate them.
Step 2: Blend the Beans
Drain the peeled beans and place them in a blender. Add a small amount of water to help the blending process, but be careful not to add too much—the batter should be thick. Blend until the mixture is smooth and thick, similar to the consistency of a thick pancake batter. Depending on the size of your blender, you might need to do this in batches.
Step 3: Prepare the Batter
 Pour the blended beans into a mixing bowl. Add the chopped onions, Scotch bonnet peppers, and salt. If you’re using ground crayfish, add it now for an extra layer of flavour.
Then, mix the batter thoroughly. At this point, you can also whisk the batter vigorously in one direction for about 5-10 minutes to incorporate air, which helps to make the Kosai fluffy.
Step 4: Heat the Oil
 Get a deep frying pan or pot, and heat enough vegetable oil to cover the Kosai halfway while frying. The oil should be hot but not smoking—about 350°F (180°C) is ideal. You can test the oil’s readiness by dropping a small dollop of batter into it. If it sizzles and rises to the surface, the oil is ready.
Step 5: Fry the Kosai
Using a spoon, carefully scoop portions of the batter into the hot oil. Fry in batches, being careful not to overcrowd the pan. This helps maintain the oil temperature and ensures even cooking. Fry each batch for about 4-5 minutes, turning occasionally, until the Kosai are golden brown and crispy on all sides. Use a slotted spoon to remove the Kosai from the oil and drain them on paper towels to remove excess oil.
Kosai is best served hot, straight from the pan. It’s often enjoyed in the North with spicy yaji or ground pepper sauce, adding an extra kick to each bite. In the South, a steaming bowl of pap or custard accompanies, creating a delightful contrast between the sweet, creamy porridge and the savoury, spicy bean cake. No matter how it’s served, Kosai is a dish inviting you to gather around and share stories and laughter over a plate of freshly fried bean cakes.
So, the next time you make Kosai, remember that you’re not just cooking—you’re continuing a story that has been told for generations—a story of community, love, and the simple joy of sharing good food.