Pweza wa Nazi.
Octopus in Coconut Curry
Pweza wa nazi · say it: PWEH-zah wah NAH-zee
Pweza wa nazi is octopus cooked twice: first simmered on its own until every tentacle turns tender enough to cut with a spoon, then finished in a coconut sauce loosened with tamarind water and lit up with green chilli and lime. The sauce is thick, pale gold and only mildly hot, and it tastes sweet, sour and faintly smoky at the same time — coconut fat carrying tamarind sourness, with curry spice sitting underneath. The octopus itself stays springy rather than rubbery, which is entirely a question of patience during the first simmer. Eaten with rice or with flatbread torn and dragged through the sauce.

- Gate
TanzaniaZanzibar and the Swahili coast- Prep
- 20 min
- Cook
- 1 hr 5 min
- Total time
- 1 hr 25 min
- Serves
- 4
- Status
- Medium
- Nutrition / serving · estimated
- Calories 430 kcal
- Protein 34 g
- Carbs 13 g
- Fat 27 g
- Fiber 3 g
- Sodium 690 mg
Why this recipe works.
- Cooks the octopus separately first, so it is genuinely tender before it ever meets the sauce.
- Uses tamarind and lime the way coastal cooks do — as two different kinds of sourness, added at two different moments.
- Explains what tender octopus actually feels like under a skewer, rather than giving a fixed time for wildly different sizes.
- Keeps the coconut milk out of a hard boil, which is what stops the sauce turning grainy.
Ingredients.
17 itemsFor the first simmer
For the sauce
To finish
Equipment
- Large pot for the first simmer
- Wide heavy pan or sauté pan
- Thin metal skewer for testing
- Fine sieve for the tamarind
Instructions.
Simmer the octopus
Put the octopus in a pot with the halved onion and bay leaves, cover with water and bring to a bare simmer. Cook uncovered for 45 to 60 minutes, skimming the grey foam that rises in the first ten minutes. Do not add salt yet.
Tip The water should tremble, not bubble. Hard boiling tightens the flesh and adds time rather than saving it.
Test and cut
Push a thin skewer into a tentacle where it thickens near the head. It should slide in with almost no pressure; if it pushes back, keep simmering and check again every 10 minutes. Lift the octopus out, let it cool enough to handle, and cut it into thick bite-sized pieces.
Soften the aromatics
Heat the oil in a wide pan and cook the chopped onion over medium heat for about 8 minutes, until it collapses and turns glassy at the edges without colouring. Stir in the garlic, ginger and slit chillies and cook for another minute, until the garlic smells sweet rather than sharp.
Bloom the spice
Scatter in the curry powder, turmeric and black pepper and stir for 45 seconds, until the pan smells toasted and the powders darken slightly. Add the grated tomatoes and cook until the mixture reduces to a thick paste and oil beads at the edges.
Build the coconut sauce
Pour in the strained tamarind water and let it bubble for a minute, then add the coconut milk and bring to a slow simmer. Let it reduce for 10 minutes, until the sauce coats a spoon and turns a deeper cream colour.
Return the octopus
Slide the octopus pieces into the sauce and simmer gently for 12 minutes, so they take on the spice and the sauce thickens around them. Season with salt now, tasting as you go — the octopus carries some sea salt of its own.
Sharpen and serve
Take the pan off the heat, stir in the lime juice and half the coriander, and taste for the sweet-sour balance: it should read coconut first, then tamarind, then a low chilli warmth. Scatter the rest of the coriander over and serve hot with rice.
Tips from our kitchen.
- Frozen octopus is genuinely better than fresh here. Freezing breaks down the connective tissue and shortens the first simmer considerably.
- Do not salt the octopus during the first simmer. Salt early tightens the flesh; season only once the coconut milk is in.
- Test for doneness with a thin skewer at the thickest part of a tentacle, where it meets the head. If it slides in without pushing, it is ready.
- Once the coconut milk goes in, keep the pan at a lazy simmer with bubbles breaking slowly. A rolling boil splits the sauce into oil and curds.
- Make tamarind water from the block rather than using concentrate if you can — soak a walnut-sized lump in warm water, then squeeze and strain out the seeds and fibre.
- Slit the green chillies instead of chopping them. They perfume the sauce and can be fished out for anyone who does not want the heat.
Substitutions.
- Octopus → Squid, or large shell-on prawns
- Both cook in minutes instead of an hour, so skip the first simmer entirely and add them to the finished sauce for the last 4 to 6 minutes.
- Tamarind → Juice of 1 extra lime plus 1 tsp brown sugar
- Lime is sharper and less rounded than tamarind, and the sugar replaces the fruitiness. Green mango, grated, is the closer swap if you can find it.
- Curry powder → 2 tsp ground cumin, 2 tsp ground coriander, 1 tsp turmeric and a pinch of fenugreek
- Coastal curry powders lean mild and aromatic rather than hot, so a homemade blend along these lines is closer than a fiery Madras mix.
Variations.
- Pweza wa kuchoma
- The Forodhani grill version: par-simmer the octopus, then skewer and char it over coals, basting with the coconut sauce and serving the rest as a dip.
- Samaki wa nazi
- The same coconut sauce built around thick pieces of firm white fish, which need only 8 minutes of poaching once the sauce is made.
- With raw mango
- When green mangoes are in season, half a grated one replaces the tamarind and goes in with the coconut milk, giving a fresher, fruitier sourness.
Storage & reheating.
This keeps 2 days refrigerated and is arguably better on day two, once the tamarind has settled into the coconut. Reheat gently in a covered pan over low heat, stirring in a splash of water if the sauce has tightened. Do not freeze it: octopus that has been cooked and then frozen turns spongy, and the coconut sauce separates on thawing. If you want a head start, do the first simmer up to two days ahead and keep the drained octopus refrigerated in a little of its cooking liquid.
Serve with
Wali wa nazi or plain steamed rice, and chapati for mopping. A saucer of pilipili sauce on the side for anyone who wants real heat.
The story behind Pweza wa Nazi.
Octopus is reef food, and the reef is why this dish belongs to the Swahili coast rather than to Tanzania alone. At spring low tide the shallow flats around Unguja, Pemba and the Kenyan and Mozambican coastlines drain almost dry, and octopus hunters walk out onto the exposed coral with a metal rod, reading the entrances of dens by the scraps of crab shell piled outside them. It is one of the few fisheries in the region where women fish as much as men, and in parts of Zanzibar and Kilwa communities now close sections of reef for a few months at a time so the octopus can grow before harvest — a management practice that has spread along this coast because it visibly works.
In Zanzibar the fish ends up in two places. One is the grill: skewered chunks charred over coals at the Forodhani Gardens night market on Stone Town's waterfront, where stallholders set up at sunset in front of the old fort. The other is a pot of coconut curry, which is what the same octopus becomes at home when there is no charcoal going. Coconut is the default cooking liquid on this coast — most households still grate the flesh themselves and press two extractions from it, a thick first squeeze and a thin second — and curry powder, tamarind and lime came in with the same Indian Ocean trade that brought biryani and cardamom.
The result is a dish that is confidently Zanzibari without being uniquely Zanzibari. Mombasa cooks it, Lamu cooks it, and coastal Mozambique cooks a close relative with more chilli and less curry powder. What varies from kitchen to kitchen is the souring agent: tamarind in most of Zanzibar, raw mango when it is in season, and in some houses nothing but a hard squeeze of lime at the end. The one thing nobody argues about is that the octopus goes in the pot long before the coconut milk does.
Questions, answered.
How do I stop octopus turning rubbery?
Rubbery octopus is undercooked octopus, not overcooked. The connective tissue needs a long, gentle simmer to break down, and it passes through a tough stage on the way there. Keep the water at a bare simmer rather than a boil, check with a skewer every 10 minutes after the 40 minute mark, and simply keep going until it yields. Buying frozen and thawed octopus shortens the whole process.
Do I need to clean the octopus myself?
Most octopus sold frozen or at a fish counter is already cleaned, with the beak and innards removed. If yours is whole, cut the head open and pull out the innards, push the hard beak out from the centre of the tentacles, and rinse well. There is no need to remove the skin — it holds colour and body in the sauce.
Why did my coconut sauce go grainy?
It boiled too hard. Coconut milk is an emulsion, and vigorous heat drives the fat out and leaves the solids as small curds. Keep it at a slow simmer once it goes in, stir occasionally rather than constantly, and if it does split, take the pan off the heat and whisk in a couple of tablespoons of cold coconut milk to bring it back.
Can I use light coconut milk?
It will work but the sauce stays thin and tastes watery, because most of the flavour on this coast comes from coconut fat. Full-fat tinned coconut milk is the minimum; if you can buy fresh grated coconut, pressing your own first extraction gives a noticeably sweeter, cleaner sauce.
Is this dish very spicy?
No. Two slit green chillies give warmth and aroma rather than burn, and the dominant flavours are coconut, tamarind and mild curry spice. Heat on the Swahili coast is usually added individually at the table from a bowl of pilipili sauce, so cook the pot mild and let people adjust their own plate.
You might also like.
All recipes →Keep exploring Tanzania.
Tanzania has 9 more dishes in the atlas — Biriani ya Zanzibar and Chipsi Mayai, and 7 more.
Recipe by The DishRoute Kitchen · published August 20, 2026 · updated August 20, 2026