Nigerian Cabbage & Sweet Potato Mash (Colcannon-Inspired Obe Ẹfọ Mash)

How to Make It

1. 1

   Prepare and boil the sweet potatoes

   Peel and cut 600g of orange-fleshed sweet potatoes into even medium chunks. Place them in a pot and cover with 300ml of low-sodium vegetable stock or plain water. Bring to a boil over medium heat, then reduce to a gentle simmer. Cook for 18–22 minutes until the sweet potatoes are completely fork-tender and soft.

   Tip: Do not overcook or waterlog — drain immediately once tender to preserve nutrients and prevent a watery mash.
2. 2

   Sauté the aromatics

   While the sweet potatoes cook, heat 15ml of unrefined red palm oil in a wide pan over medium-low heat. Add the sliced red onion and minced garlic and cook gently for 3–4 minutes until softened and fragrant. Add the grated ginger, crushed uda seed pods, and lightly rinsed iru. Stir everything together and cook for another 2 minutes, allowing the flavours to bloom beautifully.

   Tip: Keep the heat medium-low to protect the palm oil's beneficial compounds and prevent bitterness from over-frying the iru.
3. 3

   Wilt the cabbage and greens

   Add the finely shredded green cabbage directly into the aromatic pan. Toss well to coat in the spiced oil. Add 2 tablespoons of the sweet potato cooking water to help steam the cabbage. Cover and cook for 4–5 minutes, stirring occasionally, until the cabbage is just wilted but still slightly crisp. Stir in the shredded uziza or scent leaves in the last minute of cooking.

   Tip: Avoid overcooking the cabbage — retaining a slight bite preserves more vitamin C and dietary fibre, which is essential for gut health and blood sugar management.
4. 4

   Mash the sweet potatoes

   Drain the cooked sweet potatoes thoroughly and return them to the pot off the heat. Mash firmly using a potato masher or the back of a large wooden spoon until smooth and creamy. Season with freshly ground black pepper and a very small pinch of sea salt if needed. The natural sweetness of the potato needs very little additional seasoning.

   Tip: For a chunkier, more rustic texture, mash only three-quarters of the sweet potato and leave some pieces whole — this also lowers the overall glycaemic load of the dish.
5. 5

   Combine the mash and cabbage

   Fold the wilted, spiced cabbage mixture — including all the aromatic pan juices — directly into the mashed sweet potato. Add the ground crayfish and mix everything together gently but thoroughly until fully combined. The mash should be golden-orange, flecked with green cabbage and aromatic herbs, and deeply fragrant.

   Tip: Taste before adding any extra salt. The crayfish and iru already provide a savoury umami base — most people will find no additional salt is needed.
6. 6

   Serve and garnish

   Spoon generous portions of the mash into shallow bowls or onto plates. Garnish with freshly chopped spring onions on top. Serve hot as a satisfying standalone meal, or pair with a small serving of grilled fish, boiled eggs, or Nigerian pepper soup for added protein. This mash also stores well — refrigerate in an airtight container for up to 3 days.

   Tip: For diabetic clients, serve with a source of lean protein to further reduce the meal's glycaemic impact and promote longer satiety.